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This article in SSSAJ

  1. Vol. 44 No. 6, p. 1331-1333
     
    Received: May 19, 1980
    Published: Nov, 1980


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doi:10.2136/sssaj1980.03615995004400060043x

Importance of Prereducing Selenium(VI) to Selenium(IV) and Decomposing Organic Matter in Soil Extracts Prior to Determination of Selenium Using Hydride Generation1

  1. S. M. Workman and
  2. P. N. Soltanpour2

Abstract

Abstract

Hydride generation techniques using NaBH4 are widely used for the determination of Se in aqueous solutions. In soil extracts, Se(IV) is the only form of Se reduced to SeH2 by NaBH4. 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.

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