Battery powered laser-induced plasma spectrometer for elemental determinations

被引：56
作者：
Castle, BC [1 ]
Knight, AK [1 ]
Visser, K [1 ]
Smith, BW [1 ]
Winefordner, JD [1 ]
机构：
[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA
来源：
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1998年 / 13卷 / 07期
关键词：
laser-induced breakdown spectrometry; laser plasma imaging; steel; ore; organic samples; calcium; manganese;
D O I：
10.1039/a708844b
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A battery powered, portable laser-induced breakdown spectrometry instrument with a low pulse energy laser and a low resolution, non-gated spectrometer is evaluated. Improvements in the instrument probe design mere accomplished through studies of the plasma spatial development, lens-to-sample distance effects and spatial filtering. The prototype was evaluated on paint, steel, ores, and organic samples. Limits of detection ranged from 0.016% for Mn in MST SRM steel to 0.13% for Ca in NIST SRM organic samples. Acceptable precision (0.4-4.9%) mas obtained for steel, ore and organic SRM samples. The poorer precision (4.0-44.1%) obtained for the detection of Pb in paint can be attributed to the heterogeneity of the samples.
引用
收藏
页码：589 / 595
页数：7
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