Determination of lead in phosphate ore and phosphogypsum

被引：2

作者：

Sloof, JE ^{[1
]}

Woittiez, JRW ^{[1
]}

Woroniecka, U ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,INTERFAC REACTOR INST,2629 JB DELFT,NETHERLANDS

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1996年 / 354卷 / 01期

关键词：

D O I：

10.1007/s002169600003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method is presented for the lead determination in calcium phosphate and -sulphate matrices. Pb is separated from the matrix by solid-liquid extraction on a Pb-selective column ''Sr*Spec'' (Eichrom) and subsequently determined by graphite furnace atomic absorption spectrometry. The yield of the chemical separation is determined by using Pb-210. The method is suitable in principle for any material containing more than three times the standard deviation in the blank, being 30 mu g kg(-1) Pb. Application of the method to phosphogypsum, phosphate ore, phosphoric acid and (certified) reference materials such as soils, sediments, coal fly ash, citrus leaves and cabbage yielded accurate Pb results.

引用

页码：16 / 20

页数：5

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