Multi-element characterization of titanium(IV) oxide by electrothermal atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry, inductively coupled plasma mass spectrometry and total reflection X-ray fluorescence spectrometry after matrix-analyte separation

被引:33
作者
Wildhagen, D
Krivan, V
机构
[1] UNIV ULM,SEKT ANALYT & HOCHSTREINIGUNG,D-89069 ULM,GERMANY
[2] CIBA GEIGY AG,DEPT CENT ANALYT,CH-4002 BASEL,SWITZERLAND
关键词
titanium(IV) oxide; matrix-analyte separation; trace analysis; electrothermal atomic absorption spectrometry; inductively coupled plasma atomic emission spectrometry; inductively coupled plasma mass spectrometry; total reflection X-ray fluorescence spectrometry;
D O I
10.1039/ja9961100371
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A matrix-analyte separation technique for the trace characterization of titanium(IV) oxide has been developed based pn adsorption of the analytes on a column of the cation exchanger Dowex 50WX 8 from 0.1 mol l(-1) HF followed by their elution with 4 mol l(-1) HNO3 in the opposite dow direction, The removal of the titanium matrix with a separation factor >10(4) was achieved, The separation technique developed was applied to the analysis of two titanium(IV) oxide powders of different purity grade by electrothermal atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry, inductively coupled plasma mass spectrometry and total reflection,X-ray fluorescence spectrometry, The results, including those obtained by neutron activation analysis, are compared, For all the determination methods used, the limits of detection are given and the capabilities of the methods are compared and discussed.
引用
收藏
页码:371 / 377
页数:7
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