Flow-injection preconcentration and graphite furnace atomic absorption spectrometric determination of platinum

Flow-injection graphite furnace atomic absorption spectrometric (GFAAS) methods were worked out using oxime, sulphoxine and 2,2′-diamino-diethylamine (DEN) cellulose microcolumns for preconcentration of platinum after reduction by iodide or sulphite ions. The detection limits were, at 20-fold enrich...

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Veröffentlicht in:Talanta (Oxford) 2003-02, Vol.59 (2), p.393-398
Hauptverfasser: Lásztity, A, Kelkó-Lévai, Á, Zih-Perényi, K, Varga, I
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Sprache:eng
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Zusammenfassung:Flow-injection graphite furnace atomic absorption spectrometric (GFAAS) methods were worked out using oxime, sulphoxine and 2,2′-diamino-diethylamine (DEN) cellulose microcolumns for preconcentration of platinum after reduction by iodide or sulphite ions. The detection limits were, at 20-fold enrichment, 0.21, 0.18 and 0.30 μg l −1, respectively. The total reflection X-ray fluorescence spectrometry (TXRF) was also used for the determination of platinum in eluates. The method was applied for the determination of platinum in salmeterol xinafoate and Ca-folinate pharmaceutical compounds. Decomposition of organic matrix of Ca-folinate was necessary before the preconcentration.
ISSN:0039-9140
1873-3573
DOI:10.1016/S0039-9140(02)00529-5