江西农业大学学报2011，Vol.33Issue(2)：394-398,5.
荧光光谱检测脐橙表面敌敌畏残留试验研究
A Study on Detection of Dichlorvos Residue on Navel Orange Surface by Means of Fluorescence Spectrum
摘要
Abstract
Pesticide residue in fruits and vegetables seriously harms human health.In the experiment,pesticide solutions were of different concentrations prepared with dichlorvos and running water.400 navel oranges were sprayed with different pesticide solutions.After air-dried, fluorescence spectra were collected from the navel oranges, and the spectra range was from 350 to 1 800 nm; then the pesticide residues on navel orange surface were determined by gas chromatography.The collected spectral data were divided into 30 spectral intervals, the data were analyzed by interval partial least squares method and 5 optimal characteristic spectral intervals were obtained.Based on the 5 spectral intervals, partial least squares models of pesticide residue determination were built, and the correlation coefficients of calibration set and prediction set were 0.860 7 and 0.837 5, respectively.The results show that the method of using fluorescence spectrum to determinate dichlorvos residue on navel orange surface is feasible, meantime, the determination models can be simplified by choosing characteristic spectral interval and this provides theoretical basis for fast non-destructive detection of pesticide residue.关键词
荧光光谱/敌敌畏残留/无损检测/偏最小二乘法/脐橙分类
化学化工引用本文复制引用
薛龙,黎静,刘木华,王晓,罗春生..荧光光谱检测脐橙表面敌敌畏残留试验研究[J].江西农业大学学报,2011,33(2):394-398,5.基金项目
国家自然科学基金资助项目(30760101)、新世纪优秀人才支持计划资助项目(NCET-09-0168)、江西省科技厅农业科技支撑计划(2009BNB05705)和江西省教育厅科学技术研究(GJJ08513) （30760101）
