Cloud point extraction of disulfiram for its HPLC-MS/MS determination in synthetic urine
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Volodymyr O. Doroschuk
, Anastasiya B. Grogul
Abstract
A new simple cloud point extraction/preconcentration method was developed for the HPLC-MS/MS determination of disulfiram in synthetic urine. Some parameters with an effect on the extraction, such as the concentration of Triton X-114, pH influence, incubation time, equilibration temperature and centrifuging parameters, were studied and optimised. The method proposed for the HPLC-MS/MS determination of disulfiram in synthetic urine with preliminary cloud point extraction was validated. The calibration curve was linear in the range of 0.025-15.4 ng mL–1 . The limits of detection (3σ) and quantification (10σ) were 0.008 ng mL–1 and 0.025 ng mL–1, respectively. The matrix effect (96 %), recovery of the extraction procedure (95 %) and overall “process efficiency” (91 %) were also estimated. The results show that the sensitivity, metrological characteristics, ecological safety, simplicity and convenience of the suggested procedure exceed its analogues based on extraction using organic solvents.
References
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© 2016 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Original Paper
- Simultaneous analysis of polar and non-polar components of cell membrane phospholipids by GC-MS
- Original Paper
- Cloud point extraction of disulfiram for its HPLC-MS/MS determination in synthetic urine
- Original Paper
- Revealing the seed proteome of the health benefitting grain amaranth (Amaranthus cruentus L.)
- Original Paper
- Possible role of hydrolytic enzymes (Sap, Kex2) in Candida albicans response to aromatic compounds bearing a sulfone moiety
- Original Paper
- Using nutritional and oxidative stress to increase content of healthbeneficial fatty acids in oleaginous and non-oleaginous yeasts
- Original Paper
- Fatty acids and amino acids of entomopathogenic fungus Conidiobolus coronatus grown on minimal and rich media
- Original Paper
- Promotional effect of cobalt addition on catalytic performance of Ce0.5Zr0.5O2 mixed oxide for diesel soot combustion
- Original Paper
- Microwave-assisted continuous reactive distillation process for preparation of ethyl acetate
- Original Paper
- Wall-retardation effects on particles settling through non-Newtonian fluids in parallel plates
- Original Paper
- Microwave-assisted decomposition of fgd gypsum in the presence of magnetite and anthracite
- Original Paper
- Effect of PHB on the properties of biodegradable PLA blends
- Original Paper
- Thiophene-free diphenyl-amino-stilbene-diketo-pyrrolo-pyrrole derivatives as donors for organic bulk heterojunction solar cells
- Short Communication
- UV-induced reduction of Ag+ by diazene sulphonates: new method of metallisation of surfaces