文章基本信息

标题：Determination of Lead in Serum by Graphite Furnace Atomic Absorption Spectrometry Using Chromium Nitrate as a Matrix Modifier
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作者：SHOJI IMAI ; TOSHIYUKI TANAKA ; KENGO SAITO 等
期刊名称：Journal of Health Science
印刷版ISSN：1344-9702
电子版ISSN：1347-5207
出版年度：1991
卷号：37
期号：1
页码：22-27
DOI：10.1248/jhs1956.37.22
出版社：The Pharmaceutical Society of Japan
摘要：A method for the determination of lead in serum by graphite furnace atomic absorption spectrometry with the standard type graphite tube using chromium nitrate as a matrix modifier is described. Serum is used without complicated sample pretreatment but with dilution by 1% Triton X-100 of 0.1 mol/l nitric acid solution containing 2000 mgCr/l. Detection limit (S/N=3) was 0.22 μg/l in serum. Reproducibility (RSD) of 4% at n=10 was observed. Recovery of lead in a certified reference material, bovine blood was 104%. The average sensitivity for five different serum samples was 0.00304 abs per μg/l (RSD : 4%). Lead level in 1.3 μg/l of serum was observed in twenty sera of normal subjects.
关键词：graphite furnace atomic absorption spectrometry;lead;serum;matrix modifier