Analysis of lignite using laser-induced breakdown spectroscopy

被引：95

作者：

Wallis, FJ

Chadwick, BL

Morrison, RJS

机构：

[1] Cooperat Res Ctr Clean Power Lignite, Mulgrave, Vic 3170, Australia

[2] Monash Univ, Dept Chem, Clayton, Vic 3168, Australia

来源：

APPLIED SPECTROSCOPY | 2000年 / 54卷 / 08期

关键词：

LIBS; lignite; coal; elemental analysis;

D O I：

10.1366/0003702001950814

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The application of laser-induced breakdown spectroscopy (LIBS) to the chemical analysis of low-ash lignite has been investigated. A Nd:YAG laser (lambda = 1064 nm) is used to induce emission from the ash-forming components, which is then spectrally resolved and analyzed. LIBS analyses of five inorganic components of lignite were shown to be reproducible between sample pellets at a 95% confidence level. Detection limits (in ppm) on an as-received basis of 60 (Ca and Al), 70 (Na), 90 (Fe), and 200 (Mg and Si) were obtained from a study of 30 lignite samples, each of which was interrogated by 300 laser pulses.

引用

页码：1231 / 1235

页数：5

共 17 条

[1]

ALEXANDER DR, 1994, P IGARSS 94, P767

[2] Laser diagnostics of painted artworks: Laser-induced breakdown spectroscopy in pigment identification [J].