Determination of Pt from coke samples by ICP-MS after microwave assisted digestion and microwave assisted cloud point extraction

被引：0
|
作者：
Matti Niemelä
Satu M. Huttunen
Stanislav S. Gornostayev
Paavo Perämäki
机构：
[1] University of Oulu,Department of Chemistry
[2] University of Oulu,Laboratory of Process Metallurgy
来源：
Microchimica Acta | 2009年 / 166卷
关键词：
Coke; Platinum; Cloud point extraction; Inductively coupled plasma mass spectrometry (ICP-MS);
D O I：
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中图分类号：
学科分类号：
摘要：
Platinum in coke samples was determined by inductively coupled plasma mass spectrometry (ICP-MS) after microwave-assisted sample digestion and temperature controlled microwave assisted cloud point extraction (MW-CPE). Interferences due to hafnium (179Hf16O) were successfully eliminated using MW-CPE with 2-MBT prior to the determination of platinum by ICP-MS. The validity of the method was studied by spike recovery tests and by analyzing certified reference material (BCR-723 street dust). The results obtained for platinum in the BCR-723 were generally in good agreement with the certified values. Furthermore, the preliminary platinum results obtained for coke sample by ICP-MS after MW-CPE were compared to those obtained by a reference method (NiS-Fire Assay preconcentration/Te coprecipitation and ICP-MS determination).
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页码：255 / 260
页数：5
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