Direct determination of Cu and Pb in edible L-lysine by graphite furnace atomic absorption spectrometry

文献类型： 外文期刊

第一作者： Shan, F

作者： Shan, F;Bian, JS

作者机构：

关键词： GFAAS;edible L-lysine;Cu;Pb

期刊名称：SPECTROSCOPY AND SPECTRAL ANALYSIS （ 影响因子：0.589； 五年影响因子：0.504 ）

ISSN： 1000-0593

年卷期： 2002 年 22 卷 3 期

页码：

收录情况： SCI

摘要： The determination of Cu and Pb in edible L-lysine by rapid graphite furnace atomic absorption spectrometry (GFAAS) is described in this paper. The sample is dissolved with thin acid and mensurated directly by GFAAS. It does not need dry ashing and wet digesting and without chemical matrix modifier. The Graphite Furnace's function of pro-treatment is fully used. Results can be obtained as soon as possible and avoid unnecessary contamination and loss of samples. The method is simple, rapid, practical and have good precision and accurate. Under the optimum conditions the result indicates that the relative standard deviation of Cu and Pb is 4.8% and 5.3% respectively, the recovery rate is 100%-110% and 102%-105% separately.

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