DETERMINATION OF GERMANIUM, PALLADIUM AND PLATINUM IN HIGHLY CONCENTRATED-SOLUTIONS OF PHOSPHORIC-ACID AND AMMONIUM-NITRATE BY FLOW-INJECTION INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY (FI-ICP-MS)

被引:33
作者
PENG, ZC [1 ]
KLINKENBERG, H [1 ]
BEEREN, T [1 ]
VANBORM, W [1 ]
机构
[1] DSM RES & PATENTS,DEPT PHYS & ANALYT CHEM,POB 18,6160 MD GELEEN,NETHERLANDS
关键词
D O I
10.1016/0584-8547(91)80101-8
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Trace element concentrations of germanium, palladium and platinum in a solution containing 2.5 M (25% m:v) phosphoric acid and 1.5 M (12% m:v) ammonium nitrate have been determined by flow injection-inductively coupled plasma-mass spectrometry (FI-ICP-MS) using an internal standard and a standard addition method. By choosing a suitable sampler and skimmer set to eliminate interferences by related species, each element could be determined by two different isotopes: Ge-72, Ge-74, Pd-105, Pd-108, Pt-194 and Pt-195. The detection limits of the isotopes used are equal to 1, 0.2, 0.3, 0.2, 0.3 and 0.3 ng/ml respectively. The relative standard deviation (RSD) for all isotopes is less than 10% for concentrations above 20 ng/ml. The method used provided an efficient matrix correction and stable operating conditions for the ICP-MS.
引用
收藏
页码:1051 / 1061
页数:11
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