Detection of trace elements in ice and water by laser-induced breakdown spectroscopy

被引：90
|
作者：
Sobral, H. [1 ]
Sangines, R. [1 ]
Trujillo-Vazquez, A. [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
来源：
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2012年 / 78卷
关键词：
LIBS in liquids; Trace analysis; Plasma characterization; QUANTITATIVE-ANALYSIS; AQUEOUS-SOLUTIONS; INDUCED PLASMA; WASTE-WATER; HEAVY-METALS; TOXIC METALS; SINGLE-PULSE; WEAR METALS; LIBS; PLANT;
D O I：
10.1016/j.sab.2012.09.005
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
In this work the detection sensitivity of Cu, Mg, Pb, Hg, Cd, Cr and Fe traces in water and ice samples has been investigated under the same experimental conditions by using laser-induced breakdown spectroscopy. Plasmas were generated by focusing the fundamental output of a Nd: YAG laser on target surfaces. Limits of detection in ice were found to be six times lower on average compared to measurements from the liquid. The evolution of the plasma electron temperature was similar for both, solid and liquid samples; while the initial electron density was higher in the plasma produced on the solid target. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：62 / 66
页数：5
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