ATOMIZATION OF TIN IN SALINE WATER MEDIA IN GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY WITH A TUNGSTEN-COATED TUBE USING PALLADIUM AS A CHEMICAL MODIFIER

被引：11

作者：

IWAMOTO, E ^{[1
]}

SHIMAZU, H ^{[1
]}

YOKOTA, K ^{[1
]}

KUMAMARU, T ^{[1
]}

机构：

[1] HIROSHIMA UNIV,FAC SCI,DEPT CHEM,HIGASHIHIROSHIMA 724,JAPAN

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 274卷 / 02期

关键词：

ATOMIC ABSORPTION SPECTROMETRY; SEA WATER; TIN; WATERS;

D O I：

10.1016/0003-2670(93)80470-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The direct atomization of tin in saline water media in graphite furnace atomic absorption spectrometry with a tungsten-coated tube was investigated. The combined use of a tungsten-coated non-pyrolytic graphite tube and palladium as a chemical modifier eliminated salinity in doubly diluted sea water without a serious loss of tin at an ashing temperature of 1700-degrees-C. Sulphate interference was also suppressed. When using an injection volume of 20 mul the sensitivity was 0.0566 +/- 0.0043 peak-area absorbance ng-1, and 0.0805 +/- 0.0078 without sodium chloride and sulphate. The 3sigma detection limit was 0.08 ng.

引用

页码：231 / 235

页数：5

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