Quantitative Analysis of Manganese in Low Alloy Steel with Micro-Laser-Induced Breakdown Spectroscopy

被引：3

作者：

Wang Xu-zhao ^{[1
]}

Hao Zhong-qi ^{[1
]}

Guo Lian-bo ^{[1
]}

Li Xiang-you ^{[1
]}

Zeng Xiao-yan ^{[1
]}

Lu Yong-feng ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Laser & Terahertz Technol Div, Wuhan 430074, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2017年 / 37卷 / 04期

关键词：

Laser-induced breakdown spectroscopy; Microscope optics; Mn; Quantitative analysis; SPECTROMETRY; SAMPLES; LIBS;

D O I：

10.3964/j.issn.1000-0593(2017)04-1254-05

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Manganese in the low alloy steel was analyzed quantitatively using micro-laser-induced breakdown spectroscopy. The spatial resolution of 20 mu m and the single pulse limit of detection of 0. 10% were obtained. The calibration curve of Mn was established with basic calibration method, with determination coefficient (R-2) of 0. 97. The average relative error of Mn concentration prediction on 7 samples is 12. 91%, and the root-mean-square error of cross-validation (RMSECV) is 0. 11%. The R2 reaches 0. 99 when using internal calibration method, as well as the average relative error of Mn concentration prediction on 7 samples and RMSECV were decreased to 7. 25% and 0. 07%, respectively. These results show that MicroLIBS technique is an effective approach for material surfaces quantitative microanalysis.

引用

页码：1254 / 1258

页数：5

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