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This article in SSSAJ

  1. Vol. 33 No. 6, p. 974-975
    Received: Apr 29, 1969
    Accepted: June 25, 1969

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Sulfur Determination in Soil Extracts by an Indirect Atomic Absorption Spectrophotometric Method1

  1. G. G. Galindo,
  2. H. Appelt and
  3. E. B. Schalscha2



Soil-sulfur in Volcanic-ash derived soils was determined in soil extracts. The sulfur extracted was transformed into sulfate ions and organic matter destroyed by means of a 30% H2O2 solution. Sulfate ions were precipitated with a 15% BaCl2 solution and the precipitate then dissolved in (NH4)2 EDTA, and Barium determined by Atomic Absorption Spectrophotometry. Sulfur recovery was ascertained using an internal standard.

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