Application of near-infrared spectroscopy to the determination of the sites of manufacture of proprietary products.
Application of near-infrared spectroscopy to the determination of the sites of manufacture of proprietary products.
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DOI:
10.1016/j.jpba.2003.11.014
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发表时间:
2004-03
影响因子:
3.4
通讯作者:
W. L. Yoon;R. D. Jee;A. Charvill;Gerard Lee;A. Moffat
中科院分区:
文献类型:
--
作者:
W. L. Yoon;R. D. Jee;A. Charvill;Gerard Lee;A. Moffat
Reflectance near-infrared (NIR) spectroscopy has been investigated as a method to distinguish between the sites of manufacture of a number of proprietary tablets. As test samples, parallel imports which are pharmaceutically equivalent products manufactured at different sites have been used. Three products: Aremis/Besitran®, Renitec®and Voltarol Retard®originating from two or more sites and Adalat®from a single site were examined. The principal component analysis (PCA) score plots showed that spectra of tablets originating from different sites of manufacture often gave rise to statistically different populations. PCA loadings indicated that the differences were related to moisture content and excipients. Spectra were used to construct a library for the classification of tablets to predict the site of manufacture based on the method of residual variance of the principal components. Where a large data set was available (Aremis/Besitran®tablets) prediction rates for the successful identification of the two sites of manufacture, Madrid and Barcelona, were 95.7 and 98.1%, respectively for the validation set with all errors encountered of Type I.