Non-destructive determination of metronidazole powder by using artificial neural networks on short-wavelength NIR spectroscopy |
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Authors: | Zhao Lingzhi Dou Ying Mi Hong Ren Meiyan Ren Yulin |
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Institution: | College of Chemistry, Jilin University, Changchun 130021, China. |
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Abstract: | The present study aimed at providing a new method in sight into short-wavelength near-infrared (NIR) spectroscopy of in pharmaceutical quantitative analysis. To do that, 124 experimental samples of metronidazole powder were analyzed using artificial neural networks (ANNs) in the 780-1100 nm region of short-wavelength NIR spectra. In this paper, metronidazole was as active component and other two components (magnesium stearate and starch) were as excipients. Different preprocessing spectral data (first-derivative, second-derivative, standard normal variate (SNV) and multiplicative scatter correction (MSC)) were applied to establish the ANNs models of metronidazole powder. The degree of approximation, a new evaluation criterion of the networks was employed to prove the accuracy of the predicted results. The results presented here demonstrate that the short-wavelength NIR region is promising for the fast and reliable determination of major component in pharmaceutical analysis. |
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Keywords: | Short-wavelength NIR spectroscopy Artificial neural networks Preprocessing Metronidazole powder |
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