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dc.contributor.authorWANG Li
dc.contributor.authorHE Ying
dc.contributor.authorQIU Zhao-chai
dc.contributor.authorWANG Xiao-ru
dc.contributor.author王小如
dc.contributor.authorLEE Frank S C
dc.date.accessioned2011-11-04T13:51:34Z
dc.date.available2011-11-04T13:51:34Z
dc.date.issued2005
dc.identifier.citationSPECTROSCOPY AND SPECTRAL ANALYSIS,2005,25(9):1397-1399zh_CN
dc.identifier.issn1000-0593
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/11119
dc.description.abstractThe objective of this study was to develop a rapid, non-destructive and real-time method for the determination of glycyrrhizic acid in glycyrrhiza uralensis fisch. Near infrared spectra (NIR) in the range of 10 000-4 000 cm(-1) were recorded for the glycyrrhiza uralensis fisch containing glycyrrhizic acid in the content of 0.94 % -3.06 %. Calibration models were established using the PLS (partial least squares) and PCR (principle component regression) algorithm. Different spectra pretreatments methods were compared. The study showed that PLS model gave better results than PCR with the correlation coefficient 0.958, SEC 0.179 (standard deviation of the calibration sets) and SEP 0.197 (standard deviation of the prediction sets). Results indicate that fiber optic NIR method can be used to on-line control the valid component in Chinese herbs.zh_CN
dc.language.isozhzh_CN
dc.publisherBEIJING UNIV PRESSzh_CN
dc.subjectglycyrrhizic acidzh_CN
dc.subjectfiber optic near infrared spectroscopyzh_CN
dc.subjectPLSzh_CN
dc.titleDetermination of glycyrrhizic acid in glycyrrhiza uralensis fisch by fiber optic near infrared spectroscopyzh_CN
dc.typeArticlezh_CN


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