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HPLC指纹图谱鉴别葶苈子与车前子(1)
http://www.100md.com 2015年1月15日 中国中药杂志 2015年第2期
     [摘要]目的:鉴别葶苈子与车前子。方法:采用高效液相色谱法建立南葶苈子指纹图谱,并使用相似度评价软件,系统聚类分析和偏最小二乘法判别分析对两者的HPLC图谱进行识别研究。结果:葶苈子与车前子的HPLC色谱峰和相对峰面积存在较大的差异,经统计分析,所有样品被分为葶苈子、车前子和混淆品三类。结论:HPLC指纹图谱结合系统聚类分析和偏最小二乘法判别分析等化学计量学方法可用来鉴别葶苈子和车前子,该方法快速、简便、准确、有效,可为葶苈子和车前子的质量评价提供依据。

    [关键词]南葶苈子;平车前子;指纹图谱;化学计量学

    Discrimination of Descurainiae Semen and Pantagirus

    Semen by HPLC fingerprints

    ZHOU Xi-dan, TANG Li-ying, ZHOU Guo-hong, KOU Zhen-zhen, WANG Ting, WANG Zhu-ju*
, http://www.100md.com
    (Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China)

    [Abstract]Objective: To discriminate Descurainiae Semen and Pantagirus Semen. Method: A high-performance liquid chromatographic method was developed to establish the fingerprint of Descurainiae Semen, and hierarchical cluster analysis (HCA) and partial least squares discriminant analysis (PLS-DA) were applied to study HPLC fingerprinting and chemical recognition. Result: There exists large difference of chromatographic peaks and its relative peak area of HPLC fingerprints between Descurainiae Semen and Pantagirus Semen, and after conducting statistical analysis, the result demonstrated that all samples were classified into three categories: Descurainiae Semen, Pantagirus Semen and their mixtures. Conclusion: The developed HPLC fingerprint combined with chemometrics can be utilized to discriminate between Descurainiae Semen and Pantagirus Semen, which was quick, simple, accurate and reliable and can provide the basis for the characterization and quality assess of Descurainiae Semen and Pantagirus Semen.
, 百拇医药
    [Key words]Descurainiae Semen; Pantagirus Semen; HPLC fingerprints; chemometrics

    doi:10.4268/cjcmm20150221

    葶苈子为十字花科植物播娘蒿Descurainiasophia(L.)Webb.exPrantl.或独行菜LepidiumapetalumWilld.的干燥成熟种子,前者习称南葶苈子,后者习称北葶苈子,中医理论认为其性大寒,味辛、苦,能泻肺平喘,利水消肿,主要用于痰涎壅滞,咳喘痰多,胸胁胀满,不得平卧,胸腹水肿,小便不利等[1-2]。车前子是车前科植物车前PlantagoasiaticaL.或平车前P.depressaWilld.的干燥成熟种子,其性寒味甘,能清热利尿通淋,渗湿止泻,明目,祛痰,主要用于热淋涩痛,水肿胀满,暑湿泄泻,目赤肿痛,痰热咳嗽等[1-2]。车前子与葶苈子是两种科属、性味、功效均不同的中药材,但近年由于车前子药源紧俏,行情上涨,而且两者形态细小,肉眼不易观察,一些不法药商就以低价的葶苈子掺到车前子中销售以从中谋取利润[3-4]。由于目前市场上葶苈子的主流品种是南葶苈子,而车前的种子明显大于平车前,很容易与南葶苈子鉴别,故市场上多以南葶苈子掺入到平车前子中。为保证安全用药,避免混淆,有学者已详细对比总结了两者的性状及显微特点,理化鉴别,化学成分,性味,功效,薄层分析等方面的不同[5-6],也有学者采用高效毛细管电泳(HPCE)法[7]、HPCE结合PCR法[8]来鉴别两者。但是在实际生产及应用环节,由于两者形态细小,长仅约1mm,宽约0.5mm,性状鉴别不易直接观察,显微鉴别需要具有丰富鉴别经验的人员才能进行,而HPCE法和PCR法鉴别对仪器的专业性提出了更高的要求。近年来,HPLC指纹图谱技术正越来越多的用于鉴别和评价中药及天然药物,有报道采用HPLC指纹图谱对不同品种及产地的车前子进行了分析[9]。本研究采用了中药色谱指纹图谱相似度评价软件,建立了南葶苈子的HPLC指纹图谱,结合化学计量学方法,分析了21批南葶苈子药材及10批平车前子药材,希望能快速有效地鉴别葶苈子与车前子,为二者的质量评价提供依据。, http://www.100md.com(周喜丹 唐力英 周国洪 寇真真 王婷 王祝举)
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