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

被引：19

作者：

Niemela, Matti ^{[1
]}

Huttunen, Satu M. ^{[2
]}

Gornostayev, Stanislav S. ^{[2
]}

Peramaki, Paavo ^{[1
]}

机构：

[1] Univ Oulu, Dept Chem, Oulu 90014, Finland

[2] Univ Oulu, Lab Proc Met, Oulu 90014, Finland

来源：

MICROCHIMICA ACTA | 2009年 / 166卷 / 3-4期

基金：

芬兰科学院;

关键词：

Coke; Platinum; Cloud point extraction; Inductively coupled plasma mass spectrometry (ICP-MS); PLASMA-MASS SPECTROMETRY; PLATINUM-GROUP ELEMENTS; GEOLOGICAL SAMPLES; METALS; COAL; PALLADIUM; RHODIUM; INTERFERENCE; PRETREATMENT; AIRBORNE;

D O I：

10.1007/s00604-009-0194-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

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 ((HfO)-Hf-179-O-16) 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).

引用

页码：255 / 260

页数：6

共 30 条

[1] Determination of trace elements in carbonaceous samples by graphite furnace atomic absorption spectrometry: Microwave digestion versus slurry sampling [J].