NONDESTRUCTIVE SAMPLING METHOD OF METALS AND ALLOYS FOR LASER ABLATION-INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY

被引:20
作者
RAITH, A [1 ]
HUTTON, RC [1 ]
ABELL, ID [1 ]
CRIGHTON, J [1 ]
机构
[1] BP,CTR RES & ENGN,SUNBURY TW16 7LN,MIDDX,ENGLAND
关键词
NONDESTRUCTIVE SAMPLING METHOD; STEEL RUBBINGS; LASER ABLATION; INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY;
D O I
10.1039/ja9951000591
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A sampling method is described for analysis of metals and alloys using laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS). The steel rubbing technique involves polishing the surface of the metal component of interest with a diamond lapping film disc and then analysing the material transferred to the disc using LA-ICP-MS. The method has the advantages that it is essentially nondestructive, components can be virtually any shape or size, and sampling is simple and safe and requires no electrical equipment. Furthermore, samples can be taken by non-specialist staff anywhere in the world by following simple instructions and the samples posted back to the laboratory for analysis. Investigations carried out on steel standards have shown that the precision of the technique is generally better than 10% (relative standard deviation), with accuracy within that experimental error. Limits of detection are in the range 1-10 mu g g(-1).
引用
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页码:591 / 594
页数:4
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