FLUOROMETRIC-DETERMINATION TRACES OF ALUMINUM IN SOIL EXTRACTS

被引：30

作者：

MANUELVEZ, MP

GARCIAVARGAS, M

机构：

[1] Department of Analytical Chemistry, Faculty of Sciences, University of Cádiz, Cádiz

来源：

TALANTA | 1994年 / 41卷 / 09期

关键词：

D O I：

10.1016/0039-9140(94)E0072-Y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Salicylaldehyde picolinoylhydrazone (SAPH) form a fluorescent complex with aluminium (lambda(ex) = 384 nm, lambda(em) = 468 nm) in acidic medium (stoichiometry 1:3, Al:SAPH). Two procedures based on the direct or standard additions methods has been proposed for the determination of concentrations down to 1-2 mug/dm3 of Al(III). The effects of 72 ions in the method has been evaluated and different masking agent reactions have been tested. The method has been used satisfactorily for the determination of aluminium at a level of mug/dm3 in acetate extracts of several agricultural soils. The method has been compared favourably with ICP spectroscopy emission.

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页码：1553 / 1559

页数：7

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