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A diffuse reflectance IR Fourier transform IR spectrometry (DRIFTS) method was developed for the rapid, direct measurement of mebendazole in drugs. Conventional KBr spectra and DRIFTS spectra were compared for the best determination of the active substance in the drug formulations. Two chemometric approaches were used in the data processing: multicomponent partial least squares (PLS2) and principal component regression. The best results were obtained with the PLS2 method.
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Aboul‐Enein et al. (2002) studied this question.
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