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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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