DETERMINATION OF TELLURIUM IN URINE BY GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY AFTER SOLVENT-EXTRACTION

被引：7

作者：

KOBAYASHI, R ^{[1
]}

IMAIZUMI, K ^{[1
]}

机构：

[1] JAPAN IND SAFETY & HLTH ASSOC,CTR OCCUPAT HLTH SERV,TOKYO 108,JAPAN

来源：

ANALYTICAL SCIENCES | 1990年 / 6卷 / 01期

关键词：

graphite furnace atomic absorption spectrometry; solvent extraction; Tellurium; urine;

D O I：

10.2116/analsci.6.83

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Trace amounts of tellurium in urine were determined by atomic absorption spectrometry using a graphite furnace atomizer. The urine was concentrated and digested with HNO3-HClO4. The bulk of salts and interfering elements were removed by 4-methyl-2-pentanone extraction procedure, and finally the organic phase was analyzed on a graphite furnace atomic absorption spectrometer equipped with an auto sampler having a concentration function. Recoveries of tellurium added to urine sample range from 90 to 103%; relative standard deviation was 9% at the 0.1 μg level. Tellurium contents in urine ranged from <0.1 to 1.2 μg/l. © 1990, The Japan Society for Analytical Chemistry. All rights reserved.

引用

页码：83 / 85

页数：3

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