Determination of Chlorovinylarsonous and Chlorovinylarsonic Acids in Water Samples by Capillary Electrophoresis with Direct Photometric Detection
Abstract
A new approach to determination of chlorovinylarsonous and chlorovinylarsonic acids in water samples by capillary zone electrophoresis is developed. Those compounds are the products of lewisite decomposition and belong to the class of skin-vesicants. Optimization of determination conditions includes a choice of the wavelength and detection mode, composition of the working buffer, sample injection volume and program of conditioning the working capillary. The developed method is characterized by high accuracy, reproducibility, selectivity of determination and lack of interference effect of the natural water matrix components. The method was tested in analysis of different real water samples. Detection limits determined at direct spectrophotometric detection (λ = 195 nm) for chlorovinylarsonous and chlorovinylarsonic acid in water samples are 0.3 and 0.5 mg/liter, respectively.
About the Authors
I. A. Rodin
Московский государственный университет имени М. В. Ломоносова
Russian Federation
Russian Federation
A. N. Stavrianidi
Московский государственный университет имени М. В. Ломоносова
Russian Federation
Russian Federation
A. V. Braun
Московский государственный университет имени М. В. Ломоносова
Russian Federation
Russian Federation
T. M. Baygildiev
Московский государственный университет имени М. В. Ломоносова
Russian Federation
Russian Federation
O. A. Shpigun
Московский государственный университет имени М. В. Ломоносова
Russian Federation
Russian Federation
I. V. Rybalchenko
Научно-производственная фирма «Люмэкс-Защита»
Russian Federation
Russian Federation
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Review
For citations:
Rodin I.A., Stavrianidi A.N., Braun A.V., Baygildiev T.M., Shpigun O.A., Rybalchenko I.V. Determination of Chlorovinylarsonous and Chlorovinylarsonic Acids in Water Samples by Capillary Electrophoresis with Direct Photometric Detection. Industrial laboratory. Diagnostics of materials. 2015;81(3):11-16. (In Russ.)
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