کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1210054 | 1493767 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemometric treatment of vanillin fingerprint chromatograms: Effect of different signal alignments on principal component analysis plots
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This study describes the chemometric treatment of vanillin fingerprint chromatograms to distinguish vanillin from different sources. Prior to principal component analysis, which is used to discriminate vanillin from different origins, the fingerprints are aligned. Three alignment algorithms are tested, correlation optimized warping (COW), target peak alignment (TPA) and semi-parametric time warping (STW). The performance of the three algorithms is evaluated and the effect of the different alignments on the PCA score plots is investigated. The alignment obtained with STW differs somewhat from that with COW and TPA. However, equivalent score plots were obtained regarding the different vanillin groups.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1120, Issues 1–2, 7 July 2006, Pages 291–298
Journal: Journal of Chromatography A - Volume 1120, Issues 1–2, 7 July 2006, Pages 291–298
نویسندگان
A.M. van Nederkassel, C.J. Xu, P. Lancelin, M. Sarraf, D.A. MacKenzie, N.J. Walton, F. Bensaid, M. Lees, G.J. Martin, J.R. Desmurs, D.L. Massart, J. Smeyers-Verbeke, Y. Vander Heyden,