Fast detection of fenthion on fruit and vegetable peel using dynamic surface-enhanced Raman spectroscopy and random forests with variable selection | |
Weng, Shizhuang1; Qiu, Mengqing1; Dong, Ronglu2; Wang, Fang1; Huang, Linsheng1; Zhang, Dongyan1; Zhao, Jinling1 | |
刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY |
2018-07-05 | |
卷号 | 200期号:无页码:20-25 |
关键词 | Dynamic surface-enhanced Raman spectroscopy Fenthion Random forests Fruit and vegetable peel Fast detection |
ISSN号 | 1386-1425 |
DOI | 10.1016/j.saa.2018.04.012 |
英文摘要 | Dynamic surface-enhanced Raman spectroscopy (D-SERS) based on the state change of the substrate not only significantly enhances but also provides a highly reproducible Raman signal. Hence, we develop a fast and accurate method for the detection of fenthion on fruit and vegetable peel using D-SERS and random forests (RF) with variable selection. With uniform Ag nanoparticles, the dynamic spectra of fenthion solution at different concentrations were obtained using D-SERS, and fenthion solution greater than or equal to 0.05 mg/L can be detected. Then, the quantitative analysis models of fenthion were developed by RF with variable selection for spectra of different range. The model of best performance is developed by RF and spectra of characteristic range with higher RF importance (top 40%), and the root mean square error of cross-validation is 0.0101 mg/L Moreover, the fenthion residue of tomato, pear, and cabbage peel were extracted by a swab dipped in ethanol and analyzed using the above method to further validate the practical effect. Compared to gas chromatography, the maximal relative deviation is below 12.5%, and the predicted recovery is between 87.5% and 112.5%. Accordingly, D-SERS and RF with variable selection can realize the fast, simple, ultrasensitive, and accurate analysis of fenthion residue on fruit and vegetable peel. (C) 2018 Elsevier B.V. All rights reserved. |
资助项目 | Natural Science Foundation of Anhui Province[1708085QF134] ; Natural Science Research Project of Anhui Provincial Education Department[KJ2017A006] ; Anhui Provincial Major Scientific and Technological Special Project[17030701062] ; National Natural Science Foundation of China[31401285] ; National Natural Science Foundation of China[61475163] ; National Natural Science Foundation of China[61672032] ; National Key Research and Development Program[4014YFD0800904] |
WOS关键词 | ORGANOPHOSPHORUS PESTICIDES ; QUANTITATIVE DETECTION ; SERS DETECTION ; HUMAN URINE ; SCATTERING ; DRUGS ; SILVER ; CLASSIFICATION ; IDENTIFICATION ; NANOPARTICLES |
WOS研究方向 | Spectroscopy |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000433272500003 |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/36629] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Weng, Shizhuang; Zhao, Jinling |
作者单位 | 1.Anhui Univ, Anhui Engn Lab Agroecol Big Data, Hefei 230601, Anhui, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Weng, Shizhuang,Qiu, Mengqing,Dong, Ronglu,et al. Fast detection of fenthion on fruit and vegetable peel using dynamic surface-enhanced Raman spectroscopy and random forests with variable selection[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2018,200(无):20-25. |
APA | Weng, Shizhuang.,Qiu, Mengqing.,Dong, Ronglu.,Wang, Fang.,Huang, Linsheng.,...&Zhao, Jinling.(2018).Fast detection of fenthion on fruit and vegetable peel using dynamic surface-enhanced Raman spectroscopy and random forests with variable selection.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,200(无),20-25. |
MLA | Weng, Shizhuang,et al."Fast detection of fenthion on fruit and vegetable peel using dynamic surface-enhanced Raman spectroscopy and random forests with variable selection".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 200.无(2018):20-25. |
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