Determination of Beryllium in Urine by Graphite furnace Atomic Absorption Spectrophotometry
作者:
D.D. Thorat,
P.N. Bhat,
T.N. Mahadevan,
S. Narayan,
G. Subramanian,
期刊:
Analytical Letters
(Taylor Available online 1995)
卷期:
Volume 28,
issue 11
页码: 1947-1958
ISSN:0003-2719
年代: 1995
DOI:10.1080/00032719508000016
出版商: Taylor & Francis Group
关键词: Beryllium in Urine;GFAAS;Acetylacetone;Solvent Extraction;Standard Addition
数据来源: Taylor
摘要:
A method for the determination of beryllium in urine samples by Graphite Furnace Atomic Absorption Spectrophotometry (GFAAS) has been developed. The background correction problem due to the sample matrix was overcome by solvent extraction step. Urine samples were digested with a mixture of concentrated nitric and sulphuric acids. Beryllium in solution was complexed with acetylacetone, extracted in chloroform at pH 8.5 and back extracted in 2%(v/v) nitric acid for final analysis by AAS. The range of concentrations of beryllium observed in urine samples covering both occupational and control subject was 0.03–0.37 ng Be/ml.
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