Determination of Lead and Copper in Ligusticum wallichii by Laser-Induced Breakdown Spectroscopy

被引：28

作者：

Wang, Jinmei ^{[1
]}

Xue, Shuwen ^{[1
]}

Zheng, Peichao ^{[1
,2
]}

Chen, Yanying ^{[1
]}

Peng, Rui ^{[3
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Chongqing Municipal Level Key Lab Photoelect Info, Coll Optoelect Engn, Chongqing 400065, Peoples R China

[2] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing, Peoples R China

[3] Chongqing Acad Chinese Med, Inst Tradit Chinese Med Planting, Chongqing, Peoples R China

来源：

ANALYTICAL LETTERS | 2017年 / 50卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Chinese traditional medicine; elemental analysis; laser-induced breakdown spectroscopy; lead and copper; ATOMIC-ABSORPTION-SPECTROMETRY; GANNAN NAVEL ORANGE; ENVIRONMENTAL-POLLUTION; QUANTITATIVE-ANALYSIS; CONTAMINATED SOILS; SUNFLOWER PLANTS; HEAVY-METALS; LIBS; CADMIUM; CLASSIFICATION;

D O I：

10.1080/00032719.2016.1254223

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Laser-induced breakdown spectroscopy was used for the analysis of the Chinese traditional medicine, Ligusticum wallichii. The laser energy and delay time were optimized to obtain best spectral quality. The limits of detection for lead and copper were 15.7 and 6.3 mu gg(-1), respectively. Multiple linear regression models between the laser-induced breakdown spectroscopy intensity and the mass fraction of lead and copper were constructed. Good agreement was observed between the actual concentrations and predicted values obtained by the models. These results demonstrate that the laser-induced breakdown spectroscopy coupled with multiple linear regression is suitable for the determination of heavy metals in Chinese traditional medicine.

引用

页码：2000 / 2011

页数：12

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