Determination of bioavailable selenium in soils using atomic absorption spectrometry

被引：0

作者：

Bajcan, D

Zemberyová, M

Klimek, J

Rúriková, D

机构：

[1] Comenius Univ, Fac Sci, Inst Chem, Bratislava 84215, Slovakia

[2] Comenius Univ, Fac Sci, Dept Analyt Chem, Bratislava 84215, Slovakia

[3] Res Inst Chem Technol, Bratislava 83603, Slovakia

来源：

CHEMICKE LISTY | 2001年 / 95卷 / 10期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bioavailable Se was determined by AAS after extraction from soil with various extractants. Six extraction agents were tested for the determination of plant-available selenium. The Se extractability from soils decreased in the order: 2 mol.l(-1) HNO3 > 1 mol.l(-1) KH2PO4 > 0.1 mol.l(-1) KH2PO4 + K2HPO4 > 0.1 mol.l(-1) KH2PO4 > 0.05 mol.l(-1) EDTA (pH 7) > 0.43 mol.l(-1) CH3COOH. The 0.1 mol.l(-1) KH2PO4 + K2HPO4 (pH 7) seemed to be the most suitable. The amount of the bioavailable Se in soils was very low (max. 2.5 %) due to acid and neutral pH of the soils.

引用

页码：638 / 641

页数：4

共 12 条

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