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Importance of Prereducing Selenium(VI) to Selenium(IV) and Decomposing Organic Matter in Soil Extracts Prior to Determination of Selenium Using Hydride Generation
Author(s) -
Workman S. M.,
Soltanpour P. N.
Publication year - 1980
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1980.03615995004400060043x
Subject(s) - selenium , hydride , chemistry , organic matter , aqueous solution , inorganic chemistry , environmental chemistry , nuclear chemistry , organic chemistry , metal
Hydride generation techniques using NaBH 4 are widely used for the determination of Se in aqueous solutions. In soil extracts, Se(IV) is the only form of Se reduced to SeH 2 by NaBH 4 . Se(VI) must be prereduced to Se(IV) to be measured. Organic constituents of soil extracts also appear to inhibit hydride production. A pretreatment procedure overcoming these problems is presented, and a simple hydride generator is described.