Near Infrared Spectroscopy in Quality Control of Shexiang Jiegu Capsules
Objective To establish a rapid identification method for Shexiang Jiegu capsules based on near-infrared spectroscopy.Methods The near-infrared spectra of Shexiang Jiegu capsules within the range of 12 000-4 000 cm-1 were collected before being processed with OPUS 7.8 spectrum analysis soft-ware.The first-order derivative was used to establish a qualitative model and combined with the vector normalization method to establish a cluster analysis model.The second-order derivative method was used to establish a consistency model.Results The established qualitative model could quickly confirm the authen-ticity of Shexiang Jiegu capsules.The cluster analysis model and consistency model could distinguish the manufacturers.Conclusion The model established in this study offers a new method for the identification and distinction of Shexiang Jiegu capsules,which is expected to facilitate production and quality control of such capsules.
near infrared spectrum technologyShexiang Jiegu capsulesqualitative modelcluster analysis modelconsistency model
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