Classification Analysis and Heavy Metal Detection of Panax Ginseng Sample by Using LIBS Technology
ZHAO Shang-yong1, ZHOU Zhi-ming1, SONG Chao2*, SUN Chang-kai1, LEI Jun-jie3, GAO Xun1*
1. School of Science, Changchun University of Science and Technology, Changchun 130022, China
2. School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China
3. Xi’an Institute of Applied Optics, Xi’an 710065, China
Abstract：The Panax ginseng is one of the most important commercial crop and precious medicine in northeastern China. With the rapid development of the economy, people’s living standard continuously improved, so the demand for health products also increased levels. At present, Due to the market mechanism has less of management and supervision measures, some problems of excessive pesticide residues, poor quality, confusion of quality and variety need to be solved. The heavy metal in Panax ginseng is extremely harmful to human health. The traditional analysis method of Panax ginseng classification is mainly based on the ginseng origin, shape, microscope and physicochemical properties. However, these methods have some problems, such as human factors, complicated sample pretreatment and secondary pollution, and reliable and rapid detection is not possible. In this study, laser-induced breakdown spectroscopy (LIBS) combined with the principal component analysis (PCA) algorithm model is established. A set of six habitats from five different locations, and three different part of Panax ginseng samples were used for LIBS experiment, the mean values of the LIBS spectrum (200~975 nm) were pretreated. The experiment results found that by dimensionality reduction and cluster analysis of spectral data, the PCA models have a good ability of classification for different habitats Panax ginseng the six habitates ginseng has a better classification. Finally, the quantitatively analyzed method was proposed, the limits of detection (LODs) of Pb and Cr is 9.55 and 10.86 mg·kg-1, the RMSECV is 0.011 Wt.% and 0.023 Wt.%, respectively. It is shown that LIBS combined with PCA algorithm to the ginseng classification and heavy metal detection has good effect and foreground.
Key words：Laser-induced breakdown spectroscopy; Principal component analysis; Classification analysis; Limits of detection
赵上勇，周志明，宋 超，孙长凯，雷俊杰，高 勋. 基于LIBS技术人参样品聚类分析及重金属检测研究[J]. 光谱学与光谱分析, 2020, 40(08): 2629-2633.
ZHAO Shang-yong, ZHOU Zhi-ming, SONG Chao, SUN Chang-kai, LEI Jun-jie, GAO Xun. Classification Analysis and Heavy Metal Detection of Panax Ginseng Sample by Using LIBS Technology. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(08): 2629-2633.
[1] Kim G, Yoon Y J, Kim H A, et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2017, 134: 17.
[2] GU Yan-hong, ZHAO Nan-jing, MA Ming-jun, et al(谷艳红, 赵南京, 马明俊, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2018, 38(3): 982.
[3] Yao M Y, Yang H, Huang L, et al. Appl. Opt., 2017, 56(14): 4070.
[4] Choi J J, Choi S J, Yoh J J. Applied Spectroscopy, 2016, 70(9): 1411.
[5] Anglos D. Applied Spectroscopy, 2001, 55(55): 186.
[6] Abdel-Salam Z, Attala S A, Daoud E, et al. Dairy Science & Technology, 2015, 95(3): 331.
[7] ZHANG Da-cheng, MA Xin-wen, ZHU Xiao-long, et al(张大成, 马新文, 朱小龙, 等). Acta Physica Sinica(物理学报), 2008, 57(10): 6348.
[8] XU Xiang-jun, WANG Xian-shuang, LI Ang-ze, et al(徐向君, 王宪双, 李昂泽, 等). Chinese Journal of Lasers(中国激光), 2019, 46(3): 1.
[9] WU Ding, HAI Ran, LIU Ping, et al(吴 鼎, 海 然, 刘 平, 等). Chinese Science Bulletin(科学通报), 2014, 59(21): 2071.
[10] Velioglu H M, Sezer B, Bilge G, et al. Meat Science, 2018, 138: 28.
[11] Alfarraj B A, Sanghapi H K, Bhatt C R, et al. Applied Spectroscopy, 2018, 72(1): 89.
[12] Myakalwar A K, Sreedhar S, Barman I, et al. Talanta, 2011, 87: 53.
[13] Yang H X, Fu H B, Wang H D, et al. Chinese Physics B, 2016, 25(6): 065201.
[14] Unnikrishnan V K, Choudhari K S, Kulkarni S D, et al. RSC Advances, 2013, 3(48): 25872.
[15] Kalam S A, Ajmathulla, Rao S V. Optics Letters, 2018, 43(15): 3465.
[16] Popov A M, Labutin T A, Zaytsev S M, et al. Journal of Analytical Atomic Spectrometry, 2014, 29(10): 1925.
