Optimization of electrochemical deposition of noble metals for permanent modification in graphite furnace atomic absorption spectrometry

被引：43

作者：

Bulska, E ^{[1
]}

Liebert-Ilkowska, K ^{[1
]}

Hulanicki, A ^{[1
]}

机构：

[1] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1998年 / 53卷 / 6-8期

关键词：

electrothermal atomic absorption spectrometry; electrodeposition; permanent modifier; cadmium;

D O I：

10.1016/S0584-8547(98)00126-8

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Palladium, rhodium and iridium were investigated as chemical modifiers following their electrodeposition on the graphite surface. Conditions for electrodeposition were optimized to find the best analytical performance. Cadmium was used as a test element in this study. Using modified tubes, maximum pyrolysis temperatures were 800 degrees C with Ir as modifier, 900 degrees C with Pd, 1000 degrees C with Pd + Ph, and 1100 degrees C with Ph alone. The modified tubes exhibit a long-term performance, which indicates an advantage in use of the electrodeposition of noble metals as permanent modification. (C) 1998 Elsevier Science B.V. All rights reserved.

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页码：1057 / 1062

页数：6

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