Electrothermal atomic absorption spectrometric determination of cadmium in Bangladeshi vegetables with a metal tube atomizer and slurry sampling technique

被引：6

作者：

Amin, MN ^{[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：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 2003年 / 83卷 / 12期

关键词：

electrothermal atomic absorption spectrometry; metal tube atomizer; slurry sampling technique; cadmium; Bangladeshi vegetables;

D O I：

10.1080/03067310310001608777

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ultrasonic slurry sampling electrothermal atomic absorption spectrometry with a molybdenum tube atomizer has been applied for the determination of cadmium in vegetable samples in Bangladesh. The suspension-stabilizing medium was 10% glycerol solution. The optimum pyrolysis temperature was 300degreesC. The detection limit was 13 fg (3 S/N ). Matrix element interference was studied and it was found that thiourea as a chemical modifier eliminated the interference. The results for the determination of cadmium in vegetable samples by the proposed method were in good agreement with those measured in dissolved acid-digested samples. The method enables rapid calibration, and simple and rapid analysis of cadmium in vegetable samples at low cost.

引用

页码：1035 / 1044

页数：10

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