Determination of total sulfur in soils and plant materials by ion chromatography1
作者:
M. A. Tabatabai,
N. T. Basta,
H. J. Pirela,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1988)
卷期:
Volume 19,
issue 15
页码: 1701-1714
ISSN:0010-3624
年代: 1988
DOI:10.1080/00103628809368047
出版商: Taylor & Francis Group
关键词: Methylene blue;ignition methods;alkaline digestion
数据来源: Taylor
摘要:
An accurate and precise ion Chromatographie (IC) method is described for determination of total S in soils and plant materials. It involves ignition of a mixture of soil and NaHCO3or plant material and NaHCO3containing Ag2O at 550°C for 3 h. The residue is dissolved in 1MHOAc, diluted with deionized water, filtered, and analyzed for S02‐4by a Dionex model 2002i ion Chromatograph. Results by the IC method of seven Iowa soils, three Chilean soils, and 10 plant materials agreed closely with those obtained by the methylene blue method after alkaline oxidation with NaOBr. In general, the IC method was more precise than the methylene blue method. The method is simple and requires a minimum of analytical skill. A single operator can analyze 30–40 soil or plant samples in a normal working day.
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