Slurry sampling electrothermal atomic absorption spectrometric determination of copper in herbal medicine samples with a molybdenum tube atomizer

被引：14

作者：

Amin, N ^{[1
]}

Kaneco, S

Suzuki, T

Ohta, K

机构：

[1] Mie Univ, Fac Engn, Dept Chem Mat, Tsu, Mie 5148507, Japan

[2] Mie Univ, Environm Preservat Ctr, Tsu, Mie 5148507, Japan

来源：

MICROCHEMICAL JOURNAL | 2003年 / 74卷 / 02期

关键词：

copper; slurry sampling; herbal medicine; electrothermal atomic absorption spectrometry; metal tube atomizer;

D O I：

10.1016/S0026-265X(03)00024-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An ultrasonic slurry sampling electrothermal atomic absorption spectrometric method with a molybdenum tube atomizer has been developed for the determination of copper in herbal medicine samples. Glycerol solution (10%) was used as the slurry medium. The optimum pyrolysis temperature was 760 degreesC. The detection limit was 72 fg (3 x S/N ratio). Matrix element interference was investigated and it was found that glycerol as a chemical modifier eliminated the interference. The amounts of copper in herbal medicines determined by the method proposed are in good accordance with those measured in dissolved acid-digested samples. The method enables rapid calibration, and simple and rapid analysis of copper in herbal medicine samples at low cost. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：181 / 186

页数：6

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