Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1171288 | Analytica Chimica Acta | 2006 | 7 Pages |
Abstract
A simple, accurate, sensitive and selective method was described for rapid determination of ultra-trace quantities of selenium. Selenium(IV) was collected on activated carbon (AC) after reduction to elemental Se by l-ascorbic acid. The collected selenium was then dissolved by oxidation reaction with bromate in acidic media and was indirectly determined through the bromide formation using square-wave voltammetry (OSWV). The total amount of Se(IV) and Se(VI) was collected on AC after its reduction by hydrazine. Selenium in the range 0.01–20 μg L−1 could be determined by this method. The method was used to the determination of Se(IV) and Se(VI) in natural water with satisfactory results.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Franco A. Bertolino, Angel A.J. Torriero, Eloy Salinas, Roberto Olsina, Luis D. Martinez, Julio Raba,