The determination of extractable plant available selenium from soils by electrothermal atomic absorption spectroscopy
作者:
Stephen Poole,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1988)
卷期:
Volume 19,
issue 15
页码: 1681-1691
ISSN:0010-3624
年代: 1988
DOI:10.1080/00103628809368045
出版商: Taylor & Francis Group
关键词: Selenium;soil solution;plant availability;electrothermal atomic absorption spectroscopy
数据来源: Taylor
摘要:
Plant available selenate was measured in a soil extract by electrothermal atomic absorption spectroscopy. Selenate in soil was first extracted with potassium sulfate then extracted into toluene fron an iodide‐sulfuric acid media. Aliquots of the toluene were injected into the graphite furnace for selenium determination. Quantities of extractable selenium measured using the electrothermal atomic absorption method compared favorably with the results of determinations using a fluorometric technique on aliquots of the soil extract. The simplicity of the procedure allowed for the precise determination of soil selenate in a brief period of time.
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