Startseite Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag
Artikel Open Access

Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag

  • Qiuju Chen , Wenjin Ding EMAIL logo , Tongjiang Peng und Hongjuan Sun
Veröffentlicht/Copyright: 21. April 2020
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Open Chemistry
Aus der Zeitschrift Open Chemistry Band 18 Heft 1

Abstract

In this study, a procedure for producing calcium carbonate whisker through yellow phosphorus slag carbonation without adding any crystal control agents was proposed. The influence of process parameters on the crystal phase and morphology of the product was discussed. The content of aragonite in the product was more than 90% under optimal conditions. The whiteness of the product was 97.6%. The diameter of a single particle was about 1.5–3 μm, and the length of a single particle was about 8–40 μm. Various polymorphs and morphologies of CaCO3 could be formed by adjusting the production conditions. The by-products produced during the whole preparation process could also be reused. The whole preparation process of fibrous aragonite from yellow phosphorus slag without using any chemical additives was also proposed. These indicated that the production strategy had a good application prospect.

Keywords: yellow phosphorus slag; calcium carbonate whisker; experimental conditions; growth process

Introduction

Because of its unique physical and chemical properties, precipitated calcium carbonate is widely used in chemical [1,2,3], food [4], and pharmaceutical industries [5] and in other fields [6,7]. The properties of materials are determined by their structure, and the crystal type and the morphology are the important factors of materials’ structure. For example, carbon materials with different polymorphs and morphologies may show different properties [8]. Hence, the structure of the product that plays a crucial role in the preparation process was investigated. Calcium carbonate has three crystal types. They are spherical vaterite, fibrous aragonite, and rhombohedral calcite. Aragonite has a fibrous morphology, and it can be used in the seal and friction material field [9,10,11,12]. The market price of calcite and vaterite is much higher than that of aragonite. Therefore, a lot of research studies have been carried out by scholars from China and other countries to produce calcium carbonate whisker [13,14].

Currently, the main methods of preparing calcium carbonate whisker are carbonation, decomposition of calcium bicarbonate, urea hydrolysis, double decomposition, and so on [15,16,17,18]. The raw materials used in these methods are mainly pure substances or natural minerals, and chemical additives are usually needed to adjust the morphology of the product during the preparation process. Yellow phosphorus slag is a kind of solid waste produced during the production of yellow phosphorus by the dry process. About 8–10 tons of waste residues may be produced during the production of 1 ton of yellow phosphorus. The main chemical composition of yellow phosphorus slag is amorphous calcium silicate. Hence, the amount of calcium is high in yellow phosphorus slag, and it has good chemical activity. So, it is a good material for producing precipitated calcium carbonate. In China, about 80,00,000 tons of yellow phosphorus slag is produced every year, which can produce 7–10 Mt of calcium carbonate in theory. At present, the slag is mainly used in the field of producing sintered brick [19], glass ceramics [20], and concrete [21]. As far as we know, there are no reports on using yellow phosphorus slag to produce fibrous aragonite.

According to our previous experimental exploration [22], CaCO3 mixed with calcite and aragonite was successfully synthesized. To obtain high-purity calcium carbonate whisker, yellow phosphorus slag was used as a raw material without any chemical additives at low temperature and normal pressure. Using yellow phosphorus slag to prepare aragonite can not only reduce the preparation economic cost but also realize the resource utilization of the slag. The effect of experimental factors such as reaction temperature, Ca2+ concentration, ammonia dosage, carbon dioxide velocity, and time on the crystal phase and morphology of the products was systematically discussed in this study. Meanwhile, the whole production process was analyzed, and the economic cost could be reduced by recovering the by-products in theory.

2 Materials and methods

2.1 Materials

The raw material of the slag was obtained from China. The main chemical composition was CaO and SiO2, and some amount of Fe2O3, P2O5, and Al2O3 was also present (Table 1). The particles were amorphous in nature in the slag (Figure 1a). The microstructure of the slag was granular (Figure 1b). The slag was milled into powder less than 150 μm. The reaction auxiliary was used without further purification, CaCl2, HCl and NH4OH, and 99.9% CO2.

Table 1

Composition of yellow phosphorus slag and leaching product (wt%)

MaterialCaOMgOSiO2P2O5Al2O3Fe2O3Others
Yellow phosphorus slag50.312.9334.703.803.473.121.67
Leaching product0.270.0598.120.170.310.140.94

Note: The chemical elements are in the form of oxide.

Figure 1 (a) XRD patterns and (b and c) SEM images of yellow phosphorus slag and acid-leaching product.
Figure 1

(a) XRD patterns and (b and c) SEM images of yellow phosphorus slag and acid-leaching product.

2.2 Methods

The whole preparation process was performed according to the experiments of the previous study [22]. During the experiments, the effect of reaction conditions (temperature, concentration of Ca2+, ammonia dosage, CO2 flow rate, and time) on the preparation process of aragonite was systematically discussed. The concentration of Ca2+ in the acid-leaching solution was 1 unit, and it was changed using distilled water and CaCl2. The technological parameters of preparation experiments for aragonite are listed in Table 2. All the chemical reactions related to the experiments are as follows [23]:

(1)CaSiO3(amorphous)+2HCl→CaCl2+H2O+SiO2
(2)CaCl2+2NH4OH→Ca(OH)2+2NH4Cl
(3)Ca(OH)2+CO2→CaCO3+H2O
Table 2

Factors and levels of aragonite preparation experiments

No.Volume of reaction solution (mL)Temperature (°C)Concentration of Ca2+Ammonia dosage (mL)CO2 flow rate (mL/min)Time (min)CO2 purity (%)
1200804/4251006099.9
22001004/4251006099.9
32001204/4251006099.9
42001504/4251006099.9
52001001/4251006099.9
62001002/4251006099.9
72001003/4251006099.9
82001004/4251006099.9
92001005/4251006099.9
102001006/4251006099.9
112001007/4251006099.9
122001008/4251006099.9
132001004/4101006099.9
142001004/4151006099.9
152001004/4201006099.9
162001004/4251006099.9
172001004/4301006099.9
182001004/4351006099.9
192001004/4401006099.9
202001004/425506099.9
212001004/4251006099.9
222001004/4251506099.9
232001004/4252006099.9
242001004/4251003099.9
252001004/4251006099.9
262001004/4251009099.9
272001004/42510012099.9

2.3 Data analysis

The chemical composition of the slag and the products was tested by X-ray fluorescence combined with chemical titration and inductively coupled plasma. The crystal phase of the raw material and the products was determined by the X-ray diffraction (XRD) spectra (an X-ray diffractometer using Cu Kα radiation [λ = 0.15406 nm] at 40 kV, 40 mA with a scanning speed of 0.02 deg/s). The microscopic morphology of the materials was observed using a scanning electron microanalyzer at an accelerating voltage of 5 kV. The specific surface area of leaching product was tested with an Autosorb-1 MP fully automatic specific surface area analyzer (Quantachrome Instruments, USA). The whiteness of the samples was tested using a whiteness meter (HY-BDY).

According to the previous research [24], the mole fractions (mol%) of calcium carbonate with different crystal forms were determined by the following equations, in which IA221, IC104, and IV110 are the XRD intensities of the (221) plane of aragonite, the (104) plane of calcite, and the (110) plane of vaterite, respectively.

For a mixture of aragonite and calcite:

(4)XA=3.157IA221IC104+3.157IA221
(5)XC=1−XA

For a ternary mixture:

(6)XA=3.157IA221IC104+3.157IA221+7.691IV110
(7)XC=IC104×XA3.157IA221
(8)XV=1.0−XA−XC.

  1. Ethical approval: The research conducted is not related to either human or animal use.

3 Results and discussion

3.1 Extraction of calcium from yellow phosphorus slag

The effect of reaction factors on the extraction ratio of calcium was studied with several selected parameters. According to the previous research, the optimal conditions for extracting calcium from yellow phosphorus slag were 3 mol/L, 60°C, 8 mL/g, and 60 min. The main chemical composition of the corresponding reaction product was silicon dioxide. The microscopic morphology of the product was granular, and there were some pores on the surface of the reaction product. The content of silicon dioxide in the reaction product was 98.12%, and the whiteness of the product was 65.4%. The specific surface area of the reaction product was 74.24 m2/g, which indicated that the reaction product has good reaction reactivity. Therefore, it can be used directly as a filler, and it can also be used as a raw material to produce white carbon black [22].

3.2 Preparation of aragonite

Calcium carbonate has three crystal types. They are spherical vaterite, fibrous aragonite, and rhombohedral calcite. Calcite has the highest thermodynamic stability, aragonite takes second place, and vaterite has the lowest thermodynamic stability [24]. This indicates that the reaction temperature can affect the crystal phase and microscopic morphology of calcium carbonate (Figure 2). Fibrous aragonite mixed with some cubic calcite was synthesized at 80°C (Figure 2a and c). The molar fraction of aragonite and calcite was 68.46% and 31.54%, respectively (Figure 2b). The mole content of aragonite increased to 93.67% and that of calcite reduced correspondingly to 6.33% (Figure 2b) when the reaction temperature was 100°C, and the products were mixture of fibrous aragonite and little cubic calcite (Figure 2a, c and d). This was because the solubility of calcium carbonate in the solution increased gradually, and the solubility of carbon dioxide and calcium hydroxide in the solution decreased with an increase in reaction temperature. Then, calcium carbonate particles were prone to grow along the c axis [25]. If the reaction temperature was further increased to 120°C and 150°C, the content of aragonite decreased and that of calcite increased correspondingly. Meanwhile, the mole fraction of aragonite was 10.37% and 0%, and the mole fraction of calcite was 89.63% and 100%, respectively, at reaction temperatures 120°C and 150°C (Figure 2b). Single cubic calcite was obtained at 150°C (Figure 2a and f). This indicated that the increase in temperature is favorable for the transition of calcium carbonate to a more thermodynamically stable crystalline form [24].

Figure 2 Effect of reaction temperature on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the product at (c) 80°C, (d) 100°C, (e) 120°C, and (f) 150°C.
Figure 2

Effect of reaction temperature on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the product at (c) 80°C, (d) 100°C, (e) 120°C, and (f) 150°C.

Figure 3 shows the effect of Ca2+ concentration on the product phase and morphology. The product comprising spherical vaterite, fibrous aragonite, and cubic calcite was prepared when the Ca2+ concentration was 1/4 (Figure 3a and c). The molar content was 30.69% for vaterite, 1.9% for aragonite, and 67.41% for calcite (Figure 3b). With the increase in Ca2+ concentration from 1/4 to 4/4, the content of calcite and vaterite decreased and the content of aragonite increased (Figure 3b). Some calcite and vaterite transformed into aragonite (Figure 3a). With the increase in Ca2+ concentration to 5/4 and 6/4, the crystal phase of vaterite disappeared. The molar content of calcite changed from 49.07% to 56.78%, and the mole content of aragonite decreased from 50.93% to 43.22% (Figure 3b). If the Ca2+ concentration was further increased to 7/4 and 8/4, the phase of the product was calcite with cubic morphology, and there were no other phases (Figure 3a, i and j). Thus, it was beneficial to synthesize vaterite when the concentration of Ca2+ was not high. With the addition of calcium chloride, the concentration of Ca2+ increased gradually in the solution. Vaterite transformed into thermodynamically metastable aragonite, and aragonite transformed into thermodynamically stable calcite [26,27].

Figure 3 Effect of Ca2+ concentration on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite, aragonite, and vaterite, and SEM images of the product at (c) 1/4, (d) 2/4, (e) 3/4, (f) 4/4, (g) 5/4, (h) 6/4, (i) 7/4, and (j) 8/4.
Figure 3

Effect of Ca2+ concentration on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite, aragonite, and vaterite, and SEM images of the product at (c) 1/4, (d) 2/4, (e) 3/4, (f) 4/4, (g) 5/4, (h) 6/4, (i) 7/4, and (j) 8/4.

The effect of NH4OH dosage on product phases is shown in Figure 4. Pure calcite was obtained with 10 and 15 mL ammonia (Figure 4a and c). When the ammonia dosage increased to 25 mL, the mole content of calcite decreased to 6.33% and the mole content of aragonite increased to 93.67% (Figure 4b). The product was composed of fibrous aragonite and little cubic calcite (Figure 4a and d–f). Further increasing the ammonia dosage to 30, 35, and 40 mL, the content of aragonite decreased gradually (Figure 4a and g–i). Then, 25 mL was the optimized ammonia dosage in the system for producing aragonite. The variation trend of content of aragonite was the same among Ca2+ concentration, ammonia dosage, and CO2 flow rate (Figure 5). The optimized CO2 flow rate was 100 mL/min. The amount of CO32− increased per unit time when increasing carbon dioxide velocity. The concentration of Ca2+ was constant, and metastable aragonite was first produced, then it gradually transformed into stable calcite with increasing amount of CO32− [28]. Therefore, increasing carbon dioxide velocity in the reaction system was useful for preparing calcite.

Figure 4 Effect of ammonia dosage on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the product at (c) 10 mL, (d) 15 mL, (e) 20 mL, (f) 25 mL, (g) 30 mL, (h) 35 mL, and (i) 40 mL.
Figure 4

Effect of ammonia dosage on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the product at (c) 10 mL, (d) 15 mL, (e) 20 mL, (f) 25 mL, (g) 30 mL, (h) 35 mL, and (i) 40 mL.

Figure 5 Effect of CO2 flow rate on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the carbonation product at (c) 50 mL/min, (d) 100 mL/min, (e) 150 mL/min, and (f) 200 mL/min.
Figure 5

Effect of CO2 flow rate on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the carbonation product at (c) 50 mL/min, (d) 100 mL/min, (e) 150 mL/min, and (f) 200 mL/min.

We also discussed the impact of reaction time on the crystal phase of the product (Figure 6). The main crystal phase was fibrous aragonite, and there were also some cubic particles in the product when the reaction time was 30 min (Figure 6a and c). The molar content of aragonite was 64.14%, and the molar content of calcite was 35.86% (Figure 6b). With appropriate prolonging of the reaction time, cubic calcite transformed into fibrous aragonite. The product with more fibrous aragonite was produced for the reaction of 60 min, and the content of aragonite in the product was the highest (Figure 6a, b and d). If the reaction time was further increased to 90 and 120 min, some aragonite transformed into calcite, and the length of the aragonite became shorter (Figure 6a, e and f). The content of aragonite decreased from 93.67% to 49.56% and that of calcite increased correspondingly from 6.33% to 50.44% (Figure 6b). This indicated that the transformation of aragonite to more stable calcite was inevitable when the reaction time was enough, which was the same as the previous research [29,30].

Figure 6 Effect of reaction time on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the product: (c) 30 min, (d) 60 min, (e) 90 min, and (f) 120 min.
Figure 6

Effect of reaction time on crystal phase and morphology: (a) XRD patterns of the product, (b) composition of the products calcite and aragonite, and SEM images of the product: (c) 30 min, (d) 60 min, (e) 90 min, and (f) 120 min.

According to the aforementioned research, aragonite was successfully prepared using yellow phosphorus slag as a raw material without any chemical additives. The content of CaCO3 in the product was 99.68%, and the content of aragonite in the product was 93.67%. The whiteness of the product was 97.6%. The aragonite samples had a fibrous morphology, and the surface of the sample was very smooth. The diameter of a single particle was about 1.5–3 μm, and the length of a single particle was about 8–40 μm (Figure 6d). The by-product NH4Cl can be obtained by evaporating the reaction filtrate, which can reduce the production economic costs. Aragonite samples prepared in the study can be used in packing fields to improve the mechanical strength of composite materials [31] and to replace asbestos for friction and seal materials.

3.3 Crystal growth process

The whole process of aragonite production from yellow phosphorus slag is shown in Figure 7. Yellow phosphorus slag was rich in calcium, which laid a foundation for the preparation of aragonite. First, Ca2+ was leached from raw material with the action of hydrochloric acid. After the reaction solution was cooled to 25°C, the pH value of the reaction solution was adjusted to be neutral using ammonium. Meanwhile, ferric hydroxide was precipitated from the solution. Second, calcium hydroxide was formed in the reaction system under the action of ammonium [23]. Third, gaseous CO2 was dissolved in water to transform Ca(OH)2 to CaCO3 at low temperature and normal pressure. Highly pure aragonite samples can be prepared by adjusting the experimental conditions. During the production process, pure cubic calcite can also be produced. Compared with the previous studies [32,33], no chemical additives were used in the production process. The raw material was industrial solid waste, and the reaction conditions were mild. So, the whole production cost may be much lower than that of the traditional preparation method in theory. The preparation experiment under the optimized conditions will be done in large scale, and the economic cost will be calculated in a follow-up study.

Figure 7 Proposed schematic diagram of yellow phosphorus slag carbonation for aragonite production.
Figure 7

Proposed schematic diagram of yellow phosphorus slag carbonation for aragonite production.

4 Conclusion

In our research, highly pure calcium carbonate whisker was successfully prepared with yellow phosphorus slag as a raw material under the action of HCl and NH4OH. The technological parameters (temperature, concentration of Ca2+, and ammonia dosage) have an important effect on the crystal type and microscopic morphology of the product. The products with single calcite, mixture of calcite and aragonite, or mixture of calcite, aragonite, and vaterite were all produced without using any chemical additives in the research. The content of aragonite in the product was 93.67% under optimal conditions. The whiteness of the product was 97.6%. The single particle diameter was about 1.5–3 μm, and the length of a single particle was about 8–40 μm. The by-products, including SiO2 residue and NH4Cl, could be utilized to reduce the economic cost in the whole production process.

Corresponding author, Email: , Tel: +86-816-2419279

Acknowledgments

This work was supported by the National Key R&D Program of China (2018YFC1802902), the Doctoral Foundation of Southwest University of Science and Technology (17zx7117), and the Longshan Academic Talent Research and Innovation Team Project of SWUST (18lzx401).

  1. Conflict of interest: The authors declare no conflict of interest.

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Received: 2019-10-10
Revised: 2020-01-14
Accepted: 2020-02-21
Published Online: 2020-04-21

© 2020 Qiuju Chen et al., published by De Gruyter

This work is licensed under the Creative Commons Attribution 4.0 International License.

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  13. Green Organic Solvent-Free Oxidation of Alkylarenes with tert-Butyl Hydroperoxide Catalyzed by Water-Soluble Copper Complex
  14. Ducrosia ismaelis Asch. essential oil: chemical composition profile and anticancer, antimicrobial and antioxidant potential assessment
  15. DFT calculations as an efficient tool for prediction of Raman and infra-red spectra and activities of newly synthesized cathinones
  16. Influence of Chemical Osmosis on Solute Transport and Fluid Velocity in Clay Soils
  17. A New fatty acid and some triterpenoids from propolis of Nkambe (North-West Region, Cameroon) and evaluation of the antiradical scavenging activity of their extracts
  18. Antiplasmodial Activity of Stigmastane Steroids from Dryobalanops oblongifolia Stem Bark
  19. Rapid identification of direct-acting pancreatic protectants from Cyclocarya paliurus leaves tea by the method of serum pharmacochemistry combined with target cell extraction
  20. Immobilization of Pseudomonas aeruginosa static biomass on eggshell powder for on-line preconcentration and determination of Cr (VI)
  21. Assessment of methyl 2-({[(4,6-dimethoxypyrimidin-2-yl)carbamoyl] sulfamoyl}methyl)benzoate through biotic and abiotic degradation modes
  22. Stability of natural polyphenol fisetin in eye drops Stability of fisetin in eye drops
  23. Production of a bioflocculant by using activated sludge and its application in Pb(II) removal from aqueous solution
  24. Molecular Properties of Carbon Crystal Cubic Structures
  25. Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag
  26. Study on the interaction between catechin and cholesterol by the density functional theory
  27. Analysis of some pharmaceuticals in the presence of their synthetic impurities by applying hybrid micelle liquid chromatography
  28. Two mixed-ligand coordination polymers based on 2,5-thiophenedicarboxylic acid and flexible N-donor ligands: the protective effect on periodontitis via reducing the release of IL-1β and TNF-α
  29. Incorporation of silver stearate nanoparticles in methacrylate polymeric monoliths for hemeprotein isolation
  30. Development of ultrasound-assisted dispersive solid-phase microextraction based on mesoporous carbon coated with silica@iron oxide nanocomposite for preconcentration of Te and Tl in natural water systems
  31. N,N′-Bis[2-hydroxynaphthylidene]/[2-methoxybenzylidene]amino]oxamides and their divalent manganese complexes: Isolation, spectral characterization, morphology, antibacterial and cytotoxicity against leukemia cells
  32. Determination of the content of selected trace elements in Polish commercial fruit juices and health risk assessment
  33. Diorganotin(iv) benzyldithiocarbamate complexes: synthesis, characterization, and thermal and cytotoxicity study
  34. Keratin 17 is induced in prurigo nodularis lesions
  35. Anticancer, antioxidant, and acute toxicity studies of a Saudi polyherbal formulation, PHF5
  36. LaCoO3 perovskite-type catalysts in syngas conversion
  37. Comparative studies of two vegetal extracts from Stokesia laevis and Geranium pratense: polyphenol profile, cytotoxic effect and antiproliferative activity
  38. Fragmentation pattern of certain isatin–indole antiproliferative conjugates with application to identify their in vitro metabolic profiles in rat liver microsomes by liquid chromatography tandem mass spectrometry
  39. Investigation of polyphenol profile, antioxidant activity and hepatoprotective potential of Aconogonon alpinum (All.) Schur roots
  40. Lead discovery of a guanidinyl tryptophan derivative on amyloid cascade inhibition
  41. Physicochemical evaluation of the fruit pulp of Opuntia spp growing in the Mediterranean area under hard climate conditions
  42. Electronic structural properties of amino/hydroxyl functionalized imidazolium-based bromide ionic liquids
  43. New Schiff bases of 2-(quinolin-8-yloxy)acetohydrazide and their Cu(ii), and Zn(ii) metal complexes: their in vitro antimicrobial potentials and in silico physicochemical and pharmacokinetics properties
  44. Treatment of adhesions after Achilles tendon injury using focused ultrasound with targeted bFGF plasmid-loaded cationic microbubbles
  45. Synthesis of orotic acid derivatives and their effects on stem cell proliferation
  46. Chirality of β2-agonists. An overview of pharmacological activity, stereoselective analysis, and synthesis
  47. Fe3O4@urea/HITh-SO3H as an efficient and reusable catalyst for the solvent-free synthesis of 7-aryl-8H-benzo[h]indeno[1,2-b]quinoline-8-one and indeno[2′,1′:5,6]pyrido[2,3-d]pyrimidine derivatives
  48. Adsorption kinetic characteristics of molybdenum in yellow-brown soil in response to pH and phosphate
  49. Enhancement of thermal properties of bio-based microcapsules intended for textile applications
  50. Exploring the effect of khat (Catha edulis) chewing on the pharmacokinetics of the antiplatelet drug clopidogrel in rats using the newly developed LC-MS/MS technique
  51. A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water
  52. Cadmium (Cd) chloride affects the nutrient uptake and Cd-resistant bacterium reduces the adsorption of Cd in muskmelon plants
  53. Removal of H2S by vermicompost biofilter and analysis on bacterial community
  54. Structural cytotoxicity relationship of 2-phenoxy(thiomethyl)pyridotriazolopyrimidines: Quantum chemical calculations and statistical analysis
  55. A self-breaking supramolecular plugging system as lost circulation material in oilfield
  56. Synthesis, characterization, and pharmacological evaluation of thiourea derivatives
  57. Application of drug–metal ion interaction principle in conductometric determination of imatinib, sorafenib, gefitinib and bosutinib
  58. Synthesis and characterization of a novel chitosan-grafted-polyorthoethylaniline biocomposite and utilization for dye removal from water
  59. Optimisation of urine sample preparation for shotgun proteomics
  60. DFT investigations on arylsulphonyl pyrazole derivatives as potential ligands of selected kinases
  61. Treatment of Parkinson’s disease using focused ultrasound with GDNF retrovirus-loaded microbubbles to open the blood–brain barrier
  62. New derivatives of a natural nordentatin
  63. Fluorescence biomarkers of malignant melanoma detectable in urine
  64. Study of the remediation effects of passivation materials on Pb-contaminated soil
  65. Saliva proteomic analysis reveals possible biomarkers of renal cell carcinoma
  66. Withania frutescens: Chemical characterization, analgesic, anti-inflammatory, and healing activities
  67. Design, synthesis and pharmacological profile of (−)-verbenone hydrazones
  68. Synthesis of magnesium carbonate hydrate from natural talc
  69. Stability-indicating HPLC-DAD assay for simultaneous quantification of hydrocortisone 21 acetate, dexamethasone, and fluocinolone acetonide in cosmetics
  70. A novel lactose biosensor based on electrochemically synthesized 3,4-ethylenedioxythiophene/thiophene (EDOT/Th) copolymer
  71. Citrullus colocynthis (L.) Schrad: Chemical characterization, scavenging and cytotoxic activities
  72. Development and validation of a high performance liquid chromatography/diode array detection method for estrogen determination: Application to residual analysis in meat products
  73. PCSK9 concentrations in different stages of subclinical atherosclerosis and their relationship with inflammation
  74. Development of trace analysis for alkyl methanesulfonates in the delgocitinib drug substance using GC-FID and liquid–liquid extraction with ionic liquid
  75. Electrochemical evaluation of the antioxidant capacity of natural compounds on glassy carbon electrode modified with guanine-, polythionine-, and nitrogen-doped graphene
  76. A Dy(iii)–organic framework as a fluorescent probe for highly selective detection of picric acid and treatment activity on human lung cancer cells
  77. A Zn(ii)–organic cage with semirigid ligand for solvent-free cyanosilylation and inhibitory effect on ovarian cancer cell migration and invasion ability via regulating mi-RNA16 expression
  78. Polyphenol content and antioxidant activities of Prunus padus L. and Prunus serotina L. leaves: Electrochemical and spectrophotometric approach and their antimicrobial properties
  79. The combined use of GC, PDSC and FT-IR techniques to characterize fat extracted from commercial complete dry pet food for adult cats
  80. MALDI-TOF MS profiling in the discovery and identification of salivary proteomic patterns of temporomandibular joint disorders
  81. Concentrations of dioxins, furans and dioxin-like PCBs in natural animal feed additives
  82. Structure and some physicochemical and functional properties of water treated under ammonia with low-temperature low-pressure glow plasma of low frequency
  83. Mesoscale nanoparticles encapsulated with emodin for targeting antifibrosis in animal models
  84. Amine-functionalized magnetic activated carbon as an adsorbent for preconcentration and determination of acidic drugs in environmental water samples using HPLC-DAD
  85. Antioxidant activity as a response to cadmium pollution in three durum wheat genotypes differing in salt-tolerance
  86. A promising naphthoquinone [8-hydroxy-2-(2-thienylcarbonyl)naphtho[2,3-b]thiophene-4,9-dione] exerts anti-colorectal cancer activity through ferroptosis and inhibition of MAPK signaling pathway based on RNA sequencing
  87. Synthesis and efficacy of herbicidal ionic liquids with chlorsulfuron as the anion
  88. Effect of isovalent substitution on the crystal structure and properties of two-slab indates BaLa2−xSmxIn2O7
  89. Synthesis, spectral and thermo-kinetics explorations of Schiff-base derived metal complexes
  90. An improved reduction method for phase stability testing in the single-phase region
  91. Comparative analysis of chemical composition of some commercially important fishes with an emphasis on various Malaysian diets
  92. Development of a solventless stir bar sorptive extraction/thermal desorption large volume injection capillary gas chromatographic-mass spectrometric method for ultra-trace determination of pyrethroids pesticides in river and tap water samples
  93. A turbidity sensor development based on NL-PI observers: Experimental application to the control of a Sinaloa’s River Spirulina maxima cultivation
  94. Deep desulfurization of sintering flue gas in iron and steel works based on low-temperature oxidation
  95. Investigations of metallic elements and phenolics in Chinese medicinal plants
  96. Influence of site-classification approach on geochemical background values
  97. Effects of ageing on the surface characteristics and Cu(ii) adsorption behaviour of rice husk biochar in soil
  98. Adsorption and sugarcane-bagasse-derived activated carbon-based mitigation of 1-[2-(2-chloroethoxy)phenyl]sulfonyl-3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl) urea-contaminated soils
  99. Antimicrobial and antifungal activities of bifunctional cooper(ii) complexes with non-steroidal anti-inflammatory drugs, flufenamic, mefenamic and tolfenamic acids and 1,10-phenanthroline
  100. Application of selenium and silicon to alleviate short-term drought stress in French marigold (Tagetes patula L.) as a model plant species
  101. Screening and analysis of xanthine oxidase inhibitors in jute leaves and their protective effects against hydrogen peroxide-induced oxidative stress in cells
  102. Synthesis and physicochemical studies of a series of mixed-ligand transition metal complexes and their molecular docking investigations against Coronavirus main protease
  103. A study of in vitro metabolism and cytotoxicity of mephedrone and methoxetamine in human and pig liver models using GC/MS and LC/MS analyses
  104. A new phenyl alkyl ester and a new combretin triterpene derivative from Combretum fragrans F. Hoffm (Combretaceae) and antiproliferative activity
  105. Erratum
  106. Erratum to: A one-step incubation ELISA kit for rapid determination of dibutyl phthalate in water, beverage and liquor
  107. Review Articles
  108. Sinoporphyrin sodium, a novel sensitizer for photodynamic and sonodynamic therapy
  109. Natural products isolated from Casimiroa
  110. Plant description, phytochemical constituents and bioactivities of Syzygium genus: A review
  111. Evaluation of elastomeric heat shielding materials as insulators for solid propellant rocket motors: A short review
  112. Special Issue on Applied Biochemistry and Biotechnology 2019
  113. An overview of Monascus fermentation processes for monacolin K production
  114. Study on online soft sensor method of total sugar content in chlorotetracycline fermentation tank
  115. Studies on the Anti-Gouty Arthritis and Anti-hyperuricemia Properties of Astilbin in Animal Models
  116. Effects of organic fertilizer on water use, photosynthetic characteristics, and fruit quality of pear jujube in northern Shaanxi
  117. Characteristics of the root exudate release system of typical plants in plateau lakeside wetland under phosphorus stress conditions
  118. Characterization of soil water by the means of hydrogen and oxygen isotope ratio at dry-wet season under different soil layers in the dry-hot valley of Jinsha River
  119. Composition and diurnal variation of floral scent emission in Rosa rugosa Thunb. and Tulipa gesneriana L.
  120. Preparation of a novel ginkgolide B niosomal composite drug
  121. The degradation, biodegradability and toxicity evaluation of sulfamethazine antibiotics by gamma radiation
  122. Special issue on Monitoring, Risk Assessment and Sustainable Management for the Exposure to Environmental Toxins
  123. Insight into the cadmium and zinc binding potential of humic acids derived from composts by EEM spectra combined with PARAFAC analysis
  124. Source apportionment of soil contamination based on multivariate receptor and robust geostatistics in a typical rural–urban area, Wuhan city, middle China
  125. Special Issue on 13th JCC 2018
  126. The Role of H2C2O4 and Na2CO3 as Precipitating Agents on The Physichochemical Properties and Photocatalytic Activity of Bismuth Oxide
  127. Preparation of magnetite-silica–cetyltrimethylammonium for phenol removal based on adsolubilization
  128. Topical Issue on Agriculture
  129. Size-dependent growth kinetics of struvite crystals in wastewater with calcium ions
  130. The effect of silica-calcite sedimentary rock contained in the chicken broiler diet on the overall quality of chicken muscles
  131. Physicochemical properties of selected herbicidal products containing nicosulfuron as an active ingredient
  132. Lycopene in tomatoes and tomato products
  133. Fluorescence in the assessment of the share of a key component in the mixing of feed
  134. Sulfur application alleviates chromium stress in maize and wheat
  135. Effectiveness of removal of sulphur compounds from the air after 3 years of biofiltration with a mixture of compost soil, peat, coconut fibre and oak bark
  136. Special Issue on the 4th Green Chemistry 2018
  137. Study and fire test of banana fibre reinforced composites with flame retardance properties
  138. Special Issue on the International conference CosCI 2018
  139. Disintegration, In vitro Dissolution, and Drug Release Kinetics Profiles of k-Carrageenan-based Nutraceutical Hard-shell Capsules Containing Salicylamide
  140. Synthesis of amorphous aluminosilicate from impure Indonesian kaolin
  141. Special Issue on the International Conf on Science, Applied Science, Teaching and Education 2019
  142. Functionalization of Congo red dye as a light harvester on solar cell
  143. The effect of nitrite food preservatives added to se’i meat on the expression of wild-type p53 protein
  144. Biocompatibility and osteoconductivity of scaffold porous composite collagen–hydroxyapatite based coral for bone regeneration
  145. Special Issue on the Joint Science Congress of Materials and Polymers (ISCMP 2019)
  146. Effect of natural boron mineral use on the essential oil ratio and components of Musk Sage (Salvia sclarea L.)
  147. A theoretical and experimental study of the adsorptive removal of hexavalent chromium ions using graphene oxide as an adsorbent
  148. A study on the bacterial adhesion of Streptococcus mutans in various dental ceramics: In vitro study
  149. Corrosion study of copper in aqueous sulfuric acid solution in the presence of (2E,5E)-2,5-dibenzylidenecyclopentanone and (2E,5E)-bis[(4-dimethylamino)benzylidene]cyclopentanone: Experimental and theoretical study
  150. Special Issue on Chemistry Today for Tomorrow 2019
  151. Diabetes mellitus type 2: Exploratory data analysis based on clinical reading
  152. Multivariate analysis for the classification of copper–lead and copper–zinc glasses
  153. Special Issue on Advances in Chemistry and Polymers
  154. The spatial and temporal distribution of cationic and anionic radicals in early embryo implantation
  155. Special Issue on 3rd IC3PE 2020
  156. Magnetic iron oxide/clay nanocomposites for adsorption and catalytic oxidation in water treatment applications
  157. Special Issue on IC3PE 2018/2019 Conference
  158. Exergy analysis of conventional and hydrothermal liquefaction–esterification processes of microalgae for biodiesel production
  159. Advancing biodiesel production from microalgae Spirulina sp. by a simultaneous extraction–transesterification process using palm oil as a co-solvent of methanol
  160. Topical Issue on Applications of Mathematics in Chemistry
  161. Omega and the related counting polynomials of some chemical structures
  162. M-polynomial and topological indices of zigzag edge coronoid fused by starphene
https://doi.org/10.1515/chem-2020-0036
Schlagwörter für diesen Artikel
yellow phosphorus slag; calcium carbonate whisker; experimental conditions; growth process
Creative Commons
BY 4.0

Artikel in diesem Heft

  1. Regular Articles
  2. Electrochemical antioxidant screening and evaluation based on guanine and chitosan immobilized MoS2 nanosheet modified glassy carbon electrode (guanine/CS/MoS2/GCE)
  3. Kinetic models of the extraction of vanillic acid from pumpkin seeds
  4. On the maximum ABC index of bipartite graphs without pendent vertices
  5. Estimation of the total antioxidant potential in the meat samples using thin-layer chromatography
  6. Molecular dynamics simulation of sI methane hydrate under compression and tension
  7. Spatial distribution and potential ecological risk assessment of some trace elements in sediments and grey mangrove (Avicennia marina) along the Arabian Gulf coast, Saudi Arabia
  8. Amino-functionalized graphene oxide for Cr(VI), Cu(II), Pb(II) and Cd(II) removal from industrial wastewater
  9. Chemical composition and in vitro activity of Origanum vulgare L., Satureja hortensis L., Thymus serpyllum L. and Thymus vulgaris L. essential oils towards oral isolates of Candida albicans and Candida glabrata
  10. Effect of excess Fluoride consumption on Urine-Serum Fluorides, Dental state and Thyroid Hormones among children in “Talab Sarai” Punjab Pakistan
  11. Design, Synthesis and Characterization of Novel Isoxazole Tagged Indole Hybrid Compounds
  12. Comparison of kinetic and enzymatic properties of intracellular phosphoserine aminotransferases from alkaliphilic and neutralophilic bacteria
  13. Green Organic Solvent-Free Oxidation of Alkylarenes with tert-Butyl Hydroperoxide Catalyzed by Water-Soluble Copper Complex
  14. Ducrosia ismaelis Asch. essential oil: chemical composition profile and anticancer, antimicrobial and antioxidant potential assessment
  15. DFT calculations as an efficient tool for prediction of Raman and infra-red spectra and activities of newly synthesized cathinones
  16. Influence of Chemical Osmosis on Solute Transport and Fluid Velocity in Clay Soils
  17. A New fatty acid and some triterpenoids from propolis of Nkambe (North-West Region, Cameroon) and evaluation of the antiradical scavenging activity of their extracts
  18. Antiplasmodial Activity of Stigmastane Steroids from Dryobalanops oblongifolia Stem Bark
  19. Rapid identification of direct-acting pancreatic protectants from Cyclocarya paliurus leaves tea by the method of serum pharmacochemistry combined with target cell extraction
  20. Immobilization of Pseudomonas aeruginosa static biomass on eggshell powder for on-line preconcentration and determination of Cr (VI)
  21. Assessment of methyl 2-({[(4,6-dimethoxypyrimidin-2-yl)carbamoyl] sulfamoyl}methyl)benzoate through biotic and abiotic degradation modes
  22. Stability of natural polyphenol fisetin in eye drops Stability of fisetin in eye drops
  23. Production of a bioflocculant by using activated sludge and its application in Pb(II) removal from aqueous solution
  24. Molecular Properties of Carbon Crystal Cubic Structures
  25. Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag
  26. Study on the interaction between catechin and cholesterol by the density functional theory
  27. Analysis of some pharmaceuticals in the presence of their synthetic impurities by applying hybrid micelle liquid chromatography
  28. Two mixed-ligand coordination polymers based on 2,5-thiophenedicarboxylic acid and flexible N-donor ligands: the protective effect on periodontitis via reducing the release of IL-1β and TNF-α
  29. Incorporation of silver stearate nanoparticles in methacrylate polymeric monoliths for hemeprotein isolation
  30. Development of ultrasound-assisted dispersive solid-phase microextraction based on mesoporous carbon coated with silica@iron oxide nanocomposite for preconcentration of Te and Tl in natural water systems
  31. N,N′-Bis[2-hydroxynaphthylidene]/[2-methoxybenzylidene]amino]oxamides and their divalent manganese complexes: Isolation, spectral characterization, morphology, antibacterial and cytotoxicity against leukemia cells
  32. Determination of the content of selected trace elements in Polish commercial fruit juices and health risk assessment
  33. Diorganotin(iv) benzyldithiocarbamate complexes: synthesis, characterization, and thermal and cytotoxicity study
  34. Keratin 17 is induced in prurigo nodularis lesions
  35. Anticancer, antioxidant, and acute toxicity studies of a Saudi polyherbal formulation, PHF5
  36. LaCoO3 perovskite-type catalysts in syngas conversion
  37. Comparative studies of two vegetal extracts from Stokesia laevis and Geranium pratense: polyphenol profile, cytotoxic effect and antiproliferative activity
  38. Fragmentation pattern of certain isatin–indole antiproliferative conjugates with application to identify their in vitro metabolic profiles in rat liver microsomes by liquid chromatography tandem mass spectrometry
  39. Investigation of polyphenol profile, antioxidant activity and hepatoprotective potential of Aconogonon alpinum (All.) Schur roots
  40. Lead discovery of a guanidinyl tryptophan derivative on amyloid cascade inhibition
  41. Physicochemical evaluation of the fruit pulp of Opuntia spp growing in the Mediterranean area under hard climate conditions
  42. Electronic structural properties of amino/hydroxyl functionalized imidazolium-based bromide ionic liquids
  43. New Schiff bases of 2-(quinolin-8-yloxy)acetohydrazide and their Cu(ii), and Zn(ii) metal complexes: their in vitro antimicrobial potentials and in silico physicochemical and pharmacokinetics properties
  44. Treatment of adhesions after Achilles tendon injury using focused ultrasound with targeted bFGF plasmid-loaded cationic microbubbles
  45. Synthesis of orotic acid derivatives and their effects on stem cell proliferation
  46. Chirality of β2-agonists. An overview of pharmacological activity, stereoselective analysis, and synthesis
  47. Fe3O4@urea/HITh-SO3H as an efficient and reusable catalyst for the solvent-free synthesis of 7-aryl-8H-benzo[h]indeno[1,2-b]quinoline-8-one and indeno[2′,1′:5,6]pyrido[2,3-d]pyrimidine derivatives
  48. Adsorption kinetic characteristics of molybdenum in yellow-brown soil in response to pH and phosphate
  49. Enhancement of thermal properties of bio-based microcapsules intended for textile applications
  50. Exploring the effect of khat (Catha edulis) chewing on the pharmacokinetics of the antiplatelet drug clopidogrel in rats using the newly developed LC-MS/MS technique
  51. A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water
  52. Cadmium (Cd) chloride affects the nutrient uptake and Cd-resistant bacterium reduces the adsorption of Cd in muskmelon plants
  53. Removal of H2S by vermicompost biofilter and analysis on bacterial community
  54. Structural cytotoxicity relationship of 2-phenoxy(thiomethyl)pyridotriazolopyrimidines: Quantum chemical calculations and statistical analysis
  55. A self-breaking supramolecular plugging system as lost circulation material in oilfield
  56. Synthesis, characterization, and pharmacological evaluation of thiourea derivatives
  57. Application of drug–metal ion interaction principle in conductometric determination of imatinib, sorafenib, gefitinib and bosutinib
  58. Synthesis and characterization of a novel chitosan-grafted-polyorthoethylaniline biocomposite and utilization for dye removal from water
  59. Optimisation of urine sample preparation for shotgun proteomics
  60. DFT investigations on arylsulphonyl pyrazole derivatives as potential ligands of selected kinases
  61. Treatment of Parkinson’s disease using focused ultrasound with GDNF retrovirus-loaded microbubbles to open the blood–brain barrier
  62. New derivatives of a natural nordentatin
  63. Fluorescence biomarkers of malignant melanoma detectable in urine
  64. Study of the remediation effects of passivation materials on Pb-contaminated soil
  65. Saliva proteomic analysis reveals possible biomarkers of renal cell carcinoma
  66. Withania frutescens: Chemical characterization, analgesic, anti-inflammatory, and healing activities
  67. Design, synthesis and pharmacological profile of (−)-verbenone hydrazones
  68. Synthesis of magnesium carbonate hydrate from natural talc
  69. Stability-indicating HPLC-DAD assay for simultaneous quantification of hydrocortisone 21 acetate, dexamethasone, and fluocinolone acetonide in cosmetics
  70. A novel lactose biosensor based on electrochemically synthesized 3,4-ethylenedioxythiophene/thiophene (EDOT/Th) copolymer
  71. Citrullus colocynthis (L.) Schrad: Chemical characterization, scavenging and cytotoxic activities
  72. Development and validation of a high performance liquid chromatography/diode array detection method for estrogen determination: Application to residual analysis in meat products
  73. PCSK9 concentrations in different stages of subclinical atherosclerosis and their relationship with inflammation
  74. Development of trace analysis for alkyl methanesulfonates in the delgocitinib drug substance using GC-FID and liquid–liquid extraction with ionic liquid
  75. Electrochemical evaluation of the antioxidant capacity of natural compounds on glassy carbon electrode modified with guanine-, polythionine-, and nitrogen-doped graphene
  76. A Dy(iii)–organic framework as a fluorescent probe for highly selective detection of picric acid and treatment activity on human lung cancer cells
  77. A Zn(ii)–organic cage with semirigid ligand for solvent-free cyanosilylation and inhibitory effect on ovarian cancer cell migration and invasion ability via regulating mi-RNA16 expression
  78. Polyphenol content and antioxidant activities of Prunus padus L. and Prunus serotina L. leaves: Electrochemical and spectrophotometric approach and their antimicrobial properties
  79. The combined use of GC, PDSC and FT-IR techniques to characterize fat extracted from commercial complete dry pet food for adult cats
  80. MALDI-TOF MS profiling in the discovery and identification of salivary proteomic patterns of temporomandibular joint disorders
  81. Concentrations of dioxins, furans and dioxin-like PCBs in natural animal feed additives
  82. Structure and some physicochemical and functional properties of water treated under ammonia with low-temperature low-pressure glow plasma of low frequency
  83. Mesoscale nanoparticles encapsulated with emodin for targeting antifibrosis in animal models
  84. Amine-functionalized magnetic activated carbon as an adsorbent for preconcentration and determination of acidic drugs in environmental water samples using HPLC-DAD
  85. Antioxidant activity as a response to cadmium pollution in three durum wheat genotypes differing in salt-tolerance
  86. A promising naphthoquinone [8-hydroxy-2-(2-thienylcarbonyl)naphtho[2,3-b]thiophene-4,9-dione] exerts anti-colorectal cancer activity through ferroptosis and inhibition of MAPK signaling pathway based on RNA sequencing
  87. Synthesis and efficacy of herbicidal ionic liquids with chlorsulfuron as the anion
  88. Effect of isovalent substitution on the crystal structure and properties of two-slab indates BaLa2−xSmxIn2O7
  89. Synthesis, spectral and thermo-kinetics explorations of Schiff-base derived metal complexes
  90. An improved reduction method for phase stability testing in the single-phase region
  91. Comparative analysis of chemical composition of some commercially important fishes with an emphasis on various Malaysian diets
  92. Development of a solventless stir bar sorptive extraction/thermal desorption large volume injection capillary gas chromatographic-mass spectrometric method for ultra-trace determination of pyrethroids pesticides in river and tap water samples
  93. A turbidity sensor development based on NL-PI observers: Experimental application to the control of a Sinaloa’s River Spirulina maxima cultivation
  94. Deep desulfurization of sintering flue gas in iron and steel works based on low-temperature oxidation
  95. Investigations of metallic elements and phenolics in Chinese medicinal plants
  96. Influence of site-classification approach on geochemical background values
  97. Effects of ageing on the surface characteristics and Cu(ii) adsorption behaviour of rice husk biochar in soil
  98. Adsorption and sugarcane-bagasse-derived activated carbon-based mitigation of 1-[2-(2-chloroethoxy)phenyl]sulfonyl-3-(4-methoxy-6-methyl-1,3,5-triazin-2-yl) urea-contaminated soils
  99. Antimicrobial and antifungal activities of bifunctional cooper(ii) complexes with non-steroidal anti-inflammatory drugs, flufenamic, mefenamic and tolfenamic acids and 1,10-phenanthroline
  100. Application of selenium and silicon to alleviate short-term drought stress in French marigold (Tagetes patula L.) as a model plant species
  101. Screening and analysis of xanthine oxidase inhibitors in jute leaves and their protective effects against hydrogen peroxide-induced oxidative stress in cells
  102. Synthesis and physicochemical studies of a series of mixed-ligand transition metal complexes and their molecular docking investigations against Coronavirus main protease
  103. A study of in vitro metabolism and cytotoxicity of mephedrone and methoxetamine in human and pig liver models using GC/MS and LC/MS analyses
  104. A new phenyl alkyl ester and a new combretin triterpene derivative from Combretum fragrans F. Hoffm (Combretaceae) and antiproliferative activity
  105. Erratum
  106. Erratum to: A one-step incubation ELISA kit for rapid determination of dibutyl phthalate in water, beverage and liquor
  107. Review Articles
  108. Sinoporphyrin sodium, a novel sensitizer for photodynamic and sonodynamic therapy
  109. Natural products isolated from Casimiroa
  110. Plant description, phytochemical constituents and bioactivities of Syzygium genus: A review
  111. Evaluation of elastomeric heat shielding materials as insulators for solid propellant rocket motors: A short review
  112. Special Issue on Applied Biochemistry and Biotechnology 2019
  113. An overview of Monascus fermentation processes for monacolin K production
  114. Study on online soft sensor method of total sugar content in chlorotetracycline fermentation tank
  115. Studies on the Anti-Gouty Arthritis and Anti-hyperuricemia Properties of Astilbin in Animal Models
  116. Effects of organic fertilizer on water use, photosynthetic characteristics, and fruit quality of pear jujube in northern Shaanxi
  117. Characteristics of the root exudate release system of typical plants in plateau lakeside wetland under phosphorus stress conditions
  118. Characterization of soil water by the means of hydrogen and oxygen isotope ratio at dry-wet season under different soil layers in the dry-hot valley of Jinsha River
  119. Composition and diurnal variation of floral scent emission in Rosa rugosa Thunb. and Tulipa gesneriana L.
  120. Preparation of a novel ginkgolide B niosomal composite drug
  121. The degradation, biodegradability and toxicity evaluation of sulfamethazine antibiotics by gamma radiation
  122. Special issue on Monitoring, Risk Assessment and Sustainable Management for the Exposure to Environmental Toxins
  123. Insight into the cadmium and zinc binding potential of humic acids derived from composts by EEM spectra combined with PARAFAC analysis
  124. Source apportionment of soil contamination based on multivariate receptor and robust geostatistics in a typical rural–urban area, Wuhan city, middle China
  125. Special Issue on 13th JCC 2018
  126. The Role of H2C2O4 and Na2CO3 as Precipitating Agents on The Physichochemical Properties and Photocatalytic Activity of Bismuth Oxide
  127. Preparation of magnetite-silica–cetyltrimethylammonium for phenol removal based on adsolubilization
  128. Topical Issue on Agriculture
  129. Size-dependent growth kinetics of struvite crystals in wastewater with calcium ions
  130. The effect of silica-calcite sedimentary rock contained in the chicken broiler diet on the overall quality of chicken muscles
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Heruntergeladen am 4.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/chem-2020-0036/html
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