Determination of gold and the platinum group elements in geological samples by ICP-MS after nickel sulphide fire assay: difficulties encountered with different types of geological samples

被引：93

作者：

Juvonen, R ^{[1
]}

Lakomaa, T ^{[1
]}

Soikkeli, L ^{[1
]}

机构：

[1] Geol Survey Finland, FIN-02151 Espoo, Finland

来源：

TALANTA | 2002年 / 58卷 / 03期

关键词：

platinum group elements; ore analysis; ICP-MS; nickel sulphide fire assay;

D O I：

10.1016/S0039-9140(02)00330-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Problems involved in the determination of Au and the platinum group elements by the nickel sulphide fire assay (NiS-FA) procedure for black shale samples, samples containing magnetite, and samples containing As, Cu, and Fe were studied. The interference of the graphite in black shale samples was eliminated either by roasting the sample prior to fusion or by adding an oxidant to the fusion flux. Addition of a reducing agent to samples, containing the oxygen-rich mineral magnetite, enabled the NiS-FA procedure to be carried out for this sample type. The interference of Cu on Rh in the ICP-MS determination was corrected by establishing a linear correlation between the interference of Cu on Rh-103 and Pd-105. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：595 / 603

页数：9

共 26 条

[1] Determination of the precious metals in geological materials by inductively coupled plasma mass spectrometry [J].