Extraction and Colorimetric Determination of Elemental Sulfur in Organic Horizons of Forest Soils
نویسنده
چکیده
A method is proposed for determining elemental S (So) in organic horizons of forest soils. Elemental sulfur is extracted from the soil with acetone and assayed by a colorimetric method. The procedure is a modification of several existing methods and allows for the extraction of all forms of So. It also reduces the interference of colored extracts from forest litter. The detection limit is 100 mg' kg-I (I mg SO'mL-1 of solution) and So concentrations in excess of 50 000 mg' kg-I have been measured. The recovery of So is approximately 90%. The method is suitable for determining So in organic forest soils with a wide range of So concentrations and where a high degree of accuracy and precision is not required. It is rapid and suitable for routine analysis in laboratories without specialized equipment.
منابع مشابه
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