کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1258214 | 971606 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous spectrophotometric determination of four preservatives in foodstuffs by multivariate calibration and artificial neural networks
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Simultaneous spectrophotometric determination of four preservatives in foodstuffs by multivariate calibration and artificial neural networks Simultaneous spectrophotometric determination of four preservatives in foodstuffs by multivariate calibration and artificial neural networks](/preview/png/1258214.png)
چکیده انگلیسی
Benzoic acid (BA), methylparaben (MP), propylparaben (PP) and sorbic acid (SA) are food preservatives, and they have well defined UV spectra. However, their spectra overlap seriously, and it is difficult to determine them individually from their mixtures without preseparation. In this paper, seven different chemometric approaches were applied to resolve the overlapping spectra and to determine these compounds simultaneously. With respect to the criteria of % relative prediction error (RPE) and % recovery, principal component regression (PCR) and radial basis function–artificial neural network (RBF–ANN) were the preferred methods. These two methods were successfully applied to the analysis of some commercial samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 20, Issue 5, May 2009, Pages 615–619
Journal: Chinese Chemical Letters - Volume 20, Issue 5, May 2009, Pages 615–619
نویسندگان
Yan Qing Chen, Yong Nian Ni,