Abstract
In this work, we present a new method for the determination and speciation of selenium in water with ion chromatography (IC) using a conductometric detector. Chromatographic parameters such as mobile phase concentration, and columns type were optimized. The established method is checked for interference with possible anions. AS 11 showed better speciation as well as separation of peaks for selenium in presence of other common ions. The method detection limit was found to be 0.046 μg L−1 and 0.015 μg L−1 for Se (IV) and Se (VI), respectively, with AS11 column coupled with conductivity detector. The reported method is demonstrated for selenium detection in 10–5000 μg L−1 range. The developed method is a substitute to expensive ICP-MS for selenium analysis and speciation within WHO permissible limit. It is also applied to determine the selenium in real water samples. The current work paves a simpler approach for selenium detection and speciation for their field mapping.
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The sincere support and encouragement from Director, CSIR-Central Scientific Instruments Organisation, Chandigarh, is highly acknowledged. Financial support under CSIR-FBR project, MLP0058, is acknowledged. A. Malakar thanks NET for salary support.
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Borah, P., Chetan, Sharma, V. et al. A Facile Method for Detection and Speciation of Inorganic Selenium with Ion Chromatography. Chromatographia 85, 213–218 (2022). https://doi.org/10.1007/s10337-021-04120-0
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DOI: https://doi.org/10.1007/s10337-021-04120-0