Startseite A new Iodobismuthate Method with a Low Volume Filtration Device as a New Tool for the Determination of Microgram Oxyethylate Amounts
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A new Iodobismuthate Method with a Low Volume Filtration Device as a New Tool for the Determination of Microgram Oxyethylate Amounts

  • Bogdan Wyrwas und Agnieszka Zgoła-Grześkowiak
Veröffentlicht/Copyright: 13. Mai 2015
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Tenside Surfactants Detergents
Aus der Zeitschrift Tenside Surfactants Detergents Band 52 Heft 3

Abstract

The standard procedure of non-ionic surfactant detection by using the Bismuth Active Substances method offers low sensitivity, precision and a high consumption of the reagents. A new spectrophotometric (λmax = 460 nm of the visible spectrum) iodobismuthate method was developed, which may be successfully used to determine the presence of non-ionic surfactants at microgram levels. The oxyethylates were precipitated with the modified Dragendorff reagent, filtered, dissolved and afterwards the spectrophotometric determination of the equivalent bismuth amount was carried out. Several key factors, which influence the results of the proposed oxyethylate determination method, were optimized. The consumption of chemical reagents was notably decreased and the sensitivity of the method increased significantly in comparison to the standard method of non-ionic surfactant determination.

Kurzfassung

Die Standardmethode zur Bestimmung von nichtionischen Tensiden mittels bismutaktiver Substanzen ist gekennzeichnet von einer geringen Empfindlichkeit und Genauigkeit sowie von einem hohen Verbrauch an Reagenzien. Eine neue spektrophotometrische Iodbismutat-Methode (λmax = 460 nm des sichtbaren Spektrums) wurde entwickelt. Mit ihr wurden nicht-ionische Tenside im Mikrogrammbereich bestimmt. Die Oxyethylate wurden mit dem modifizierten Dargendroff-Reagenz ausgefällt, dann filtiert und wieder aufgelöst. Daran schloss sich die spektrophotometrische Bestimmung des Bismutäquivalents an. Es wurden verschiedene Schlüsselfaktoren, die die Ergebnisse der vorgeschlagenen Methode beeinflussten, optimiert. Im Vergleich zu der Standardbestimmungsmethode für nicht-ionische Tenside wurde der Verbrauch an Chemikalien erheblich verringert und die Empfindlichkeit der Methode deutlich erhöht.

Key words: BiAS; Dragendorff reagent; non-ionic surfactants; spectrophotometry; PTFE
Stichwörter: BiAS; Dragendorff-Reagenz; nicht-ionische Tenside; Spektrophotometrie; PTFE
* Correspondence address, Prof. Dr Bogdan Wyrwas, Institute of Chemistry and Technical Electrochemistry Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland, E-Mail:

Bogdan Wyrwas received his Ph.D. in chemistry from Poznan University of Technology in 1997. He was graduated with Dr. degree at Poznan University of Technology in 2013 and he works there as an assistant professor. His research is focused on analysis and biodegradarion of surfactants.

Agnieszka Zgoła-Grześkowiak received her Ph.D. in chemistry from Poznan University of Technology in 2003 and she works there as an assistant professor. Her main research interests are biodegradation of surfactants and modern sample preparation techniques in environmental analysis.

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Received: 2014-08-04
Accepted: 2015-02-10
Published Online: 2015-05-13
Published in Print: 2015-05-15

© 2015, Carl Hanser Publisher, Munich

Artikel in diesem Heft

  1. Contents/Inhalt
  2. Contents
  3. Review Article
  4. Polyphenolics-Phospholipid Complexes as Natural Cosmetic Ingredients: Properties and Application
  5. Cleaning and Hygiene
  6. Construction of a Virtual Washing Machine
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  8. Development of a Method for the Analysis of Microbial Load Reduction Factors on Dishes Cleaned by Hand and by Machine
  9. Environmental Chemistry
  10. A new Iodobismuthate Method with a Low Volume Filtration Device as a New Tool for the Determination of Microgram Oxyethylate Amounts
  11. Synthesis
  12. Hybrid Biosurfactant: Syntheses of Hybrid Corynomycolic Acid and its Monolayer Formation
  13. Efficient Synthesis of Nanostructured Poly(aniline-co-m-aminobenzoic acid) Copolymer in Presence of DBSA Surfactant
  14. Physical Chemistry
  15. Study of Mixed Micelles of Promethazine Hydrochloride (PMT) and Nonionic Surfactant (TX-100) Mixtures at Different Temperatures and Compositions
  16. Application
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https://doi.org/10.3139/113.110368
Schlagwörter für diesen Artikel
BiAS; Dragendorff reagent; non-ionic surfactants; spectrophotometry; PTFE

Artikel in diesem Heft

  1. Contents/Inhalt
  2. Contents
  3. Review Article
  4. Polyphenolics-Phospholipid Complexes as Natural Cosmetic Ingredients: Properties and Application
  5. Cleaning and Hygiene
  6. Construction of a Virtual Washing Machine
  7. Larger Washing Machines and Smaller Household Size – How Can They Fit Together? Simulation of a Sustainable Use of Washing Machines
  8. Development of a Method for the Analysis of Microbial Load Reduction Factors on Dishes Cleaned by Hand and by Machine
  9. Environmental Chemistry
  10. A new Iodobismuthate Method with a Low Volume Filtration Device as a New Tool for the Determination of Microgram Oxyethylate Amounts
  11. Synthesis
  12. Hybrid Biosurfactant: Syntheses of Hybrid Corynomycolic Acid and its Monolayer Formation
  13. Efficient Synthesis of Nanostructured Poly(aniline-co-m-aminobenzoic acid) Copolymer in Presence of DBSA Surfactant
  14. Physical Chemistry
  15. Study of Mixed Micelles of Promethazine Hydrochloride (PMT) and Nonionic Surfactant (TX-100) Mixtures at Different Temperatures and Compositions
  16. Application
  17. Study of Underwater Contact Angles for Formulation of Fatliquoring Emulsions Using Green Surfactants
  18. Interfacial Properties of Alkylbenzene Sulfonates Ternary Mixtures
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