Determination of the limits of detection for aluminum-based alloys by spatially resolved single- and double-pulse laser-induced breakdown spectroscopy

被引：17

作者：

Sun, Duixiong ^{[1
]}

Ma, Yunyun ^{[2
]}

Wang, Yongqiang ^{[1
]}

Su, Maogen ^{[1
]}

Lu, Quanfang ^{[3
]}

Dong, Chenzhong ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Gansu, Peoples R China

[2] Lanzhou City Univ, Sch Bailie Engn & Technol, Lanzhou 730070, Gansu, Peoples R China

[3] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Lanzhou 730070, Gansu, Peoples R China

来源：

ANALYTICAL METHODS | 2018年 / 10卷 / 22期

基金：

中国国家自然科学基金;

关键词：

INDUCED PLASMA SPECTROSCOPY; LIBS; EMISSION; ENHANCEMENT; ABLATION;

D O I：

10.1039/c8ay00596f

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A comparative study of laser-induced breakdown spectroscopy (LIBS) with spatially resolved single- and double-pulse configurations is performed to investigate the capability of simultaneous multi-element detection in aluminum-based alloys. The spatially resolved technique is used to obtain the LIBS spectra at 6 different positions along the plume expansion (axial) direction. The experimental parameters, including delay time, inter-pulse delay time and gate width, are optimized to achieve sensitive elemental detection. Under these optimized conditions, the limits of detection for Fe, Cu, Mg, Mn, Zn, Sn, Pb, Ni, Ti, Cr, Sr and Ca are obtained with the single- and double-pulse configurations. It is observed that an improvement of the detection capability is achieved in the spatially resolved double-pulse experiments. Moreover, the dependence of the limits of detection on the selection of atomic and ionic lines is discussed.

引用

页码：2595 / 2603

页数：9

共 34 条

[1] Application of calibration-free laser-induced breakdown spectroscopy to radially resolved spectra from a copper-based alloy laser-induced plasma [J].