A study of the analytical parameters important for the sequential extraction procedure using microwave heating for Pb, Zn and Cu in calcareous soils

被引：37

作者：

Campos, E ^{[1
]}

Barahona, E ^{[1
]}

Lachica, M ^{[1
]}

Mingorance, MD ^{[1
]}

机构：

[1] CSIC, Estac Expt Zaidin, Dept Earth Sci & Environm Chem, E-18008 Granada, Spain

来源：

ANALYTICA CHIMICA ACTA | 1998年 / 369卷 / 03期

关键词：

lead; copper; zinc; microwave sequential extraction; calcareous soil; analytical performances;

D O I：

10.1016/S0003-2670(98)00238-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A four-step microwave extraction procedure, using microwave heating, for Pb, Zn and Cu fractionation has been elaborated for calcareous soils. This procedure distinguishes the metal fraction bound to carbonate, to iron and manganese oxides, to organic matter and the residual fraction. Sample and analytical variances have been estimated to identify the anomalous metal contents in the light of the variation in the concentration among the samples. Performances of each step of the method have also been calculated. The validity of the method was verified by a mass balance using calcareous soils and two certified reference materials. The results obtained were appropriate for the assessment of the environmental risks. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：235 / 243

页数：9

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