A procedure for correcting self-absorption in calibration free-laser induced breakdown spectroscopy

被引：307

作者：

Bulajic, D ^{[1
]}

Corsi, M ^{[1
]}

Cristoforetti, G ^{[1
]}

Legnaioli, S ^{[1
]}

Palleschi, V ^{[1
]}

Salvetti, A ^{[1
]}

Tognoni, E ^{[1
]}

机构：

[1] CNR, INFAM, I-56100 Pisa, Italy

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2002年 / 57卷 / 02期

关键词：

LEBS; LIPS; self absorption; curve of growth; elemental analysis;

D O I：

10.1016/S0584-8547(01)00398-6

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A model of the self-absorption effect in laser-induced plasma has been developed, with the aim of providing a tool for its automatic correction in the Calibration-Free algorithm recently developed for standardless analysis of materials by LIBS (Laser Induced Breakdown Spectroscopy). As a test of the model, the algorithm for self-absorption correction is applied to three different certified steel NIST samples and to three ternary alloys (Au, Ag, Cu) of known composition. The experimental results show that the self-absorption corrected Calibration-Free method gives reliable results, improving the precision and the accuracy of the CF-LIBS procedure by approximately one order of magnitude. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：339 / 353

页数：15

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