A new procedure, based on combustion to sulphate and ion chromatography for the analysis of elemental sulphur in sediments |
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Authors: | D. Fabbri C. Locatelli S. Tarabusi |
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Affiliation: | (1) Laboratorio di Chimica Ambientale, Università di Bologna, via Marconi 2, 48100 Ravenna, Italy |
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Abstract: | Summary A procedure exploiting the bomb preparation method for the analysis of total sulphur in organic materials has been developed for the determination of zero-valent sulphur (So) in sediments. Sediment samples were dried over magnesium oxide and sonicated in the presence of toluene to extract So. Toluene solutions were directly oxidized by combustion in a bomb containing sodium carbonate-bicarbonate buffer, which trapped sulphur species generated from So as sulphate ions. These were in turn analysed by suppressed anion chromatography with ion-conductivity detection. The method was used to determine the distribution of So in saltmarsh sediment cores. |
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Keywords: | Column liquid chromatography Ion chromatography Elemental sulphur Bomb combustion Sediments |
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