title: [Identification of marine-derived shell TCM by near infrared spectroscopy].
abstract: The identification of five marine-derived shell traditional Chinese medicine (TCM) recorded in the Chinese Pharmacopoeia were studied. Using near infrared technology (NIR) combined with principal component analysis (PCA) methods, Ostreae Concha, Haliotidis Concha, and Margaritifera Concha could be efficiently distinguished from Meretricis Concha together with Arcae Concha. In the first principal components, Ostreae Concha exhibited obvious differences with high loadings in 4 236, 5 263, 7 142 cm(-1) concerning to the contents of CaCO3 and H2O in the samples. Arcae Concha and Meretricis Concha displayed significant differences with others in the second principal components, which can be illustrated by high loadings in 5 000 -4 430 cm(-1) areas. It is indicated that the second principal components might be related to organics which contained NH and CH groups, for example proteins. Meanwhile, our data showed a correlation between the function of these shell TCM and their distribution in the PCA plot. These results suggested that organic components in marine-derived shell TCM could not be neglected for their quality control.
authors.forename: Wen-Zhe
authors.initials: WZ
authors.lastname: Yang
authors.forename: Hui-Li
authors.initials: HL
authors.lastname: Gong
authors.forename: Yu-Hua
authors.initials: YH
authors.lastname: Qin
authors.forename: Yue-Ying
authors.initials: YY
authors.lastname: Li
authors.forename: Xue
authors.initials: X
authors.lastname: Yang
authors.forename: Ning
authors.initials: N
authors.lastname: Yang
authors.forename: Hua-Shi
authors.initials: HS
authors.lastname: Guan
authors.forename: Hong-Bing
authors.initials: HB
authors.lastname: Liu
mesh_terms: D060105:Animal Shells / Q000737:chemistry*; D000818:Animals; D002119:Calcium Carbonate / Q000032:analysis; D008516:Medicine, Chinese Traditional / Q000379:methods*; D008974:Mollusca / Q000737:chemistry* / Q000145:classification; D025341:Principal Component Analysis; D012623:Seawater; D013045:Species Specificity; D019265:Spectroscopy, Near-Infrared / Q000379:methods*
chemical_list: D002119:Calcium Carbonate