The use of L-ascorbic acid in speciation of arsenic compounds in drinking water
2009
Stanic, A.R., Institute of Public Health, Subotica (Serbia) | Jovanovic, S.I., Institute of Public Health, Subotica (Serbia) | Marjanovic, N.J., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology | Suturovic, Z.J., University of Novi Sad, Novi Sad (Serbia). Faculty of Technology
Arsenic speciation, besides total arsenic content determination, is very important in analysis of water, foodstuffs, and environmental samples, because of varying degrees of toxicity of different species. For such purpose hydride generation atomic absorption spectrometry can be used based on the generation of certain types of hydride, depending on the pH value and pretreatment in different reaction media. In this study, we have investigated the effect of L-ascorbic acid as the reaction medium as well as the pre-reducing agent in speciation of arsenic by hydride generation-atomic absorption spectrometry in order to determine monomethyl arsonic acid (MMA) in the presence of inorganic forms of arsenic.
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