摘要
目的:采用近红外光谱技术(NIRS)快速定性判别市售三七粉末饮片粉末部位来源。方法:采集三七主根、筋条、剪口各部位的NIRS图,采用主成分分析与马氏距离相结合的判别分类方法,建立三七不同药用部位的判别分析模型,运用模型对市售三七粉末饮片粉末部位来源进行判别。结果:在波段范围为4 400~4 800 cm-1、5 400~6 600 cm-1、7 800~10 000 cm-1三七主根、剪口和筋条能够较好的分类,内部验证准确率均为100%,外部验证三七主根、剪口和筋条准确率分别为100%、75%和66%;25批市售三七粉末饮片粉末部位来源的鉴别中,有22批粉末部位来源判别为剪口,有3批粉末部位来源判别为剪口和筋条的混合物。结论:用近红外光谱技术对市售三七粉末饮片粉末部位来源的快速判别可行,既扩展了近红外在线监测应用功能,又补充了传统性状鉴别的局限性。
Objective： To determine the medicinal part of commercially available Panax notoginseng powder using near infrared spectroscopy. Methods： After collecting the near-infrared spectra of Panax notoginseng taproot,rod and rhizome,the discriminant analysis method of the different medicinal parts of Panax notoginseng was established by using the method of principal component analysis and Mahalanobis distance. Results： In wavelength range of 4 400 ~ 4 800 cm-1,5 400~6 600 cm-1 and 7 800 ~ 10 000 cm-1,Panax notoginseng taproot,rod and rhizome were able to be distinguished. The accuracy rate of internal validation was 100%,66% and 75%,respectively. 25 batches of commercially available Panax notoginseng powder was identified,there were 22 batches of powder identified as a rhizome and three batches of powder identified as a mixture of rod and rhizome. Conclusion： It is feasible to identify the medicinal part of commercially available Panax notoginseng powder by near infrared spectroscopy technique,which extends the application function of near infrared on-line monitoring and supplement the limitation of traditional traits.
作者
郭换
梁乙川
刘珈羽
谭荣
刘友平
陈鸿平
GUO Huan;LIANG Yi-chuan;LIU Jia-yu;TAN Rong;LIU You-ping;CHEN Hong-ping(Pharmacy College,Chengdu University of Traditional Chinese Medicine/Breeding Base of State Key Laboratory of Resources System Research and Development Utilization of Chinese Herbal Medicines Co-constuctioned by Ministry of Science and Technology and Si- chuan Province, Chengdu 611137, China)
出处
《中药材》
CAS
北大核心
2017年第11期2537-2540,共4页
Journal of Chinese Medicinal Materials
基金
成都市科技局科技项目(2014-HM 01-00407-SF)
四川省科技厅科技支撑项目(2016SZ0038)
关键词
三七
粉末药用部位
近红外光谱技术
定性鉴别
判别分析
Panax notoginseng （Burk.） F. H. Chen
Medicinal part of powder
Near infrared spectroscopy technology
Discriminant analysis
Discriminant analysis
