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Citation: JIA Zehui, WANG Chuntao, LI Hua. The Applications of Multivariate Curve Resolutional-ternating Least Squares in Resolving Overlapped Spectra of Corydalis yanhusuo Fingerprint and the Content Detection of Tetrahydropalmatine[J]. Chinese Journal of Applied Chemistry, ;2013, 30(3): 329-334. doi: 10.3724/SP.J.1095.2013.20174 shu

The Applications of Multivariate Curve Resolutional-ternating Least Squares in Resolving Overlapped Spectra of Corydalis yanhusuo Fingerprint and the Content Detection of Tetrahydropalmatine

JIA Zehui ^a, ,
WANG Chuntao ^a ,
LI Hua ^b

a. Department of Chemistry, Taiyuan Normal College, Taiyuan 030031, China;
b. Institute of Analytical Science/Research Center for Modernization of Chinese Herbal Medicines, Northwest University, Xi'an 710069, China

Received Date: 27 April 2012
Revised Date: 26 June 2012

Spectral correlative chromatography was used to identify the peak of tetrahydropalmatine in Corydalis yanhusuo fingerprint. Moreover, multivariate curve resolution-alternating least squares(MCR-ALS) was used to resolve the overlapping peaks of tetrahydropalmatine and restore its true peak shape. More than 99.9% spectrum could be recovered and accurately quantitative results were obtained. The method can be used as an auxillary fingerprinting method to provide a reliable basis for the authenticity and quality assessment of Chinese medicines. The effect of the herbs-cooking on the content of tetrahydropalmatine was also discussed.
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