Zhong Yao Cai
Medical College of Nanchang University, Nanchang 330006, China.
Published: February 2011
Objective: To classify the leaves of Chimonanthus nitens, Chimonanthus Salicifolius, Chimonanthus zhejiang and their fried samples, Discriminating equation was established to distinguish categories of raw materials.
Methods: The spectra of three kinds of Chimonanthus and fried samples were determined by FTIR. Principal component analysis, clustering analysis and discriminative analysis were applied to classify three kinds of Chimonanthus leaves and fried samples from different areas according to the relative absorbance of common peaks between 400 to 4000 cm(-1).
Results: 26 samples were divided into four classes, the discriminating accuracy was 96%.
Conclusion: The method is rapid, simple and could be applied to evaluate the quality of Chimonanthus leaves without damaging to sample, and it is easy to identify the adulteration.
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