Evaluation of femtosecond LIBS for spectrochemical microanalysis of aluminium alloys

被引：37

作者：

Cravetchi, IV ^{[1
]}

Taschuk, MT ^{[1
]}

Tsui, YY ^{[1
]}

Fedosejevs, R ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2006年 / 385卷 / 02期

关键词：

laser-induced breakdown spectroscopy (LIBS); aluminium alloy; precipitates; spectrochemical microanalysis; solid sampling; emission scaling;

D O I：

10.1007/s00216-005-0287-z

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The analytical performance of femtosecond laser-induced breakdown spectroscopy (LIBS) for elemental microanalysis of aluminium alloys and for mapping precipitate distribution on the sample surface has been studied in detail. A Ti-sapphire laser system producing pulses of 130 fs at 800 nm was used to generate the laser-induced plasma. Multi-element microanalysis of commercially available aluminium alloys was performed in air at atmospheric pressure. Crater characteristics such as diameter and crater morphology were characterized by optical and scanning-electron microscopy. Scaling of plasma emission and limit of detection as a function of laser pulse energy was also investigated. Current experimental results are presented and are compared with previous nanosecond microLIBS measurements.

引用

页码：287 / 294

页数：8

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