期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：8
页码：2689-2698
出版社：University of Mohammed Premier Oujda
摘要：The Laser Induced Fluorescence technique for determining the adulteration of argan oil by olive oil was investigated. The data were analyzed without any preprocessing using multivariate calibration methods of Principal Component Analysis and Partial Least Square regression. Fluorescence spectra of different samples were measured using a laser beam of 532 nm wavelength. Spectral data are analyzed to build a best calibration model for predicting the percentage of olive oil added to pure argan oil. A model with a regression coefficient of r 2 =0.992, a Standard Error of Prediction SEP=1.311 and bias=0.31 for adulteration has shown better prediction. A sensitive wavelength corresponding to the adulteration of argan oil by olive oil was proposed on the basis of loading by Principal Component Analysis. The results show that Laser Induced Fluorescence is a better, non- destructive and rapid optical method for analyzing argan oil adulterated by olive oil. The sensitivity detection of adulteration is possible starting from 0.43% olive oil mixed with 99.57% argan oil (w/w). The results of multivariate analysis reveal that argan oil contains enough information to detect doped argan.
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