COPRECIPITATION WITH ALUMINUM HYDROXIDE AND X-RAY-FLUORESCENCE DETERMINATION OF TRACE-METALS IN WATER

被引：12

作者：

ELTAYEB, MAH ^{[1
]}

VANGRIEKEN, RE ^{[1
]}

机构：

[1] UNIV INSTELLING ANTWERP, DEPT CHEM, UNIV PLEIN 1, B-2610 WILRIJK, BELGIUM

来源：

ANALYTICA CHIMICA ACTA | 1992年 / 268卷 / 01期

关键词：

SAMPLE PREPARATION; X-RAY FLUORESCENCE SPECTROMETRY; COPRECIPITATION; PRECONCENTRATION; TRACE METALS; WATERS;

D O I：

10.1016/0003-2670(92)85262-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Coprecipitation of trace elements on aluminium hydroxide was combined with energy-dispersive x-ray fluorescence for the analysis of environmental water. The parameters for the preconcentration method were studied. The optimum procedure involves addition of 1 mg of the carrier, at pH 7.3, to a 200-ml water sample. The pH was adjusted by addition of ammonia solution. Quantitative recoveries were obtained for Ti(IV), Cr(III), As(V), Pb(II) and Th(IV). The precision was 4-6% and the detection limits were in the range 0.2-0.8 mu g l-1.

引用

页码：177 / 183

页数：7

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