山豆根和北豆根的二维相关近红外光谱快速鉴别  

Study on the Identification of ShanDouGen and BeiDouGen by Near Infrared and Gener-alized Two-Dimensional Correlation Spectroscopy

作　　者：刘浩[1] 黄艳萍[2] 高鸿彬[2] 相秉仁[3] 

机构地区：[1]广东食品药品职业学院,广东广州510520 [2]第二军医大学附属长海医院,上海200433 [3]中国药科大学分析测试中心,江苏南京210009

出　　处：《时珍国医国药》2013年第12期2922-2925,共4页Lishizhen Medicine and Materia Medica Research

基　　金：广东省自然科学基金(No.10151052005000003);广东省医学科研基金(No.B2010055)

摘　　要：目的 结合广义二维相关光谱和近红外漫反射光谱,实现中药材山豆根和北豆根的快速鉴别.方法 检测收集山豆根和北豆根在变温（30～130℃）条件下的近红外光谱,计算二维相关光谱,比较分析同步相关光谱和异步相关光谱.结果 在一维图上,两味中药光谱非常相似,无法鉴别.利用两味中药在7 500到4 000 cm-1波段二维相关光谱特征的较大差别,并结合二维相关光谱相似度,实现了山豆根和北豆根的可视化鉴别.结论 二维相关光谱能提高近红外光谱分辨率和鉴别能力.研究结果为相关中药的快速鉴别提供了一种便捷、有力的新方法.Objective The fast and nondestructive identification of ShanDouGen and BeiDouGen by Fourier transform near infra- red spectroscopy and generalized two - dimensional correlation spectroscopy were performed. Methods Collected the near infrared spectra of ShanDouGen and BeiDouGen, then computed the Two - Dimensional Correlation Spectra, and analyzed and compared the synchronous and asynchronous 2D correlation spectra. Results Two kinds of samples have similar spectral character in one - di- mensional near infrared while quite different in two - dimensional correlation spectra. ShanDouGen and BeiDouGen were identified visually using the two - Dimensional Correlation Spectra in region 7500 - 4000cm^ -1. Conclusion The results prove that two - di- mensional correlation spectra can enhance the resolution of near infrared spectra and increase the identification ability. The study gives a new, powerful, and convenient approach for evaluating the medicinal herbs.

关 键 词：广义二维相关光谱 近红外光谱 山豆根 北豆根 快速鉴别 

分 类 号：R282.5[医药卫生—中药学]