Determination of lead(II) by electrothermal atomization atomic absorption spectrometry after coprecipitation with gallium(III) phosphate

被引：8

作者：

Kagaya, S ^{[1
]}

Ueda, J ^{[1
]}

机构：

[1] KANAZAWA UNIV, FAC EDUC, DEPT CHEM, KANAZAWA, ISHIKAWA 92011, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1997年 / 70卷 / 06期

关键词：

D O I：

10.1246/bcsj.70.1379

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gallium(III) phosphate coprecipitates quantitatively 0.1-2.0 mu g of lead(II) from 100-500 cm(3) of a sample solution at pH 2.5-6.0. The coprecipitated lead(II) can be sensitively determined by electrothermal atomization atomic absorption spectrometry without any influence of gallium(III) phosphate. The calibration curve is linear from 4 to 80 ng cm(-3) for lead(II). The detection limit (signal/noise = 2) is 0.095 ng cm(-3) of lead(II) in 500 cm(3) of the initial sample Solution. Thirty-four diverse ions tested did not interfere seriously with the determination of lead(II). This method was successfully applied to the determination of lead(II) in tap and river water.

引用

页码：1379 / 1383

页数：5

共 37 条

[1] ATOMIC-ABSORPTION SPECTROMETRY OF NANOGRAM AMOUNTS OF CADMIUM, LEAD AND ZINC AFTER PRECIPITATION WITH 8-QUINOLINOL [J].