Multi-elemental Analysis by Energy Dispersion X-ray Fluorescence Spectrometry and Its Application on the Traceability of Soybean Origin
文献类型： 外文期刊
作者： Lai, Hanqing 1 ; Xi, Jialin 4 ; Sun, Jianchun 5 ; He, Weizhong 6 ; Wang, Zhaohui 1 ; Zheng, Chuangmu 2 ; Mao, Xuefei 2 ;
作者机构： 1.Jilin Agr Univ, Coll Food Sci & Engn, Changchun 130118, Peoples R China
2.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Agrofood Safety & Qual, Beijing 100081, Peoples R China
4.Municipal Stn Agroenvironm Monitoring, Beijing 100029, Peoples R China
5.Inspect & Testing Ctr Agr & Livestock Prod Tibet, Lhasa 850000, Peoples R China
6.Xinjiang Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Urumqi 830091, Peoples R China
7.Chinese Agr Res Syst, Soybean Res & Dev Ctr, Div Soybean Proc, Changchun 130118, Peoples R China
期刊名称：ATOMIC SPECTROSCOPY （ 影响因子：2.042； 五年影响因子：1.167 ）
ISSN： 0195-5373
年卷期： 2020 年 41 卷 1 期
页码：
收录情况： SCI
摘要： In this work, a commercial energy dispersion X-ray fluorescence (ED-XRF) spectrometer was utilized to measure the trace elements in soybean samples. After optimizing the radiation time and calibration strategy, ED-XRF was able to successfully measure 9 elements (Mg, K, Ca, Mn, Fe, Ni, Cu, Zn, and Rb) in 296 soybean samples from five producing areas of northern China (Henan, Inner Mongolia, Xinjiang, Heilongjiang, and Liaoning). Since principal component analysis (PCA) is not able to distinguish all growing areas completely, the multi-layer perceptron (MLP) procedure was employed which demonstrated to have a powerful classification capacity with an accuracy rate of 96.2%. XRF is a type of solid sampling analytical method, which is fast, accurate and partly portable for multi-elemental analysis. The combination of MLP and ED-XRF overcomes the analytical disadvantages found with ICP-MS or wavelength dispersion XRF analysis, and provides a novel and fast testing method for on-site recognition of food origin traceability.
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