李兵 陈建惠 卢汝梅等


摘要:为研究过塘蛇(Jussiaea repens L.)药材的质量控制技术,分别采用薄层色谱和液相色谱法分析了过塘蛇样品中活性成分没食子酸含量。结果表明,薄层色谱法可半定量分析其没食子酸含量,液相色谱法可定量分析没食子酸,其进样量在0.12~0.86 μg之间,与峰面积呈良好线性关系(r=0.999 9),平均回收率为97.87%(RSD=0.70%,n=6),10份样品中的没食子酸含量为0.48~2.21 mg/g。该方法简单可行、重现性好,可用于过塘蛇药材的质量控制。
关键词:过塘蛇(Jussiaea repens L.);没食子酸;药材质量;薄层色谱;液相色谱
中图分类号:R917 文献标识码:A 文章编号:0439-8114(2015)14-3508-02
DOI:10.14088/j.cnki.issn0439-8114.2015.14.045
Analysis of Gallic Acid in the Medical Material of Jussiaea repens L.
LI Bing1,CHEN Jian-hui1,LU Ru-mei1,NONG Mei-dong1,ZHONG Jiang2
(1.Guangxi University of Chinese Medicine, Nanning, 530200;
2.The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, 530012)
Abstract: The content of gallic acid in Jussiaea repens L. was analyzed by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC) which provided an index of evaluation for this medical material quality. The results showed that TLC was a good semi-quantitative analysis for detecting gallic acid in this medical material, and HPLC had a good performance on quantitative analysis gallic acid. In the HPLC analysis, the good linearity in the range of 0.12~0.86 μg (r=0.999 9) was obtained. The average recovery reached 97.87% (RSD=0.70%,n=6),the contents of gallic acid in 10 samples were in the range of 0.48~2.21 mg/g. The methods are simple, feasible,repeatable for analyzing this medical material quality.
Key words: Jussiaea repens L.; gallic acid; medical material quality; TLC; HPLC
过塘蛇(Jussiaea repens L.)是柳叶菜科水龙属植物水龙,主要分布于广西、浙江、江西、广东等地,曾收载于《广西中药材标准》,为多种中成药的原料药[1]。其味淡,性凉,以干燥全草入药,具有清热、解毒、利尿、消肿之功效,常用于治疗感冒发烧、燥热咳嗽、水肿、喉痛、风火牙痛等症[2]。目前国内外对过塘蛇研究较少,Marzouk等[3]发现过塘蛇中广寄生苷的酰化产物具有保肝护肝、抗炎、治疗糖尿病的作用。张尊听等[4]采用分光光度法测定秦岭太白山20种中草药的乙醇提取液对DPPH·(1,1-二苯基-2-苦肼基自由基)的清除作用,发现过塘蛇浓度为0.4 mg(干重)/mL时,对DPPH·的清除作用高达84.1%,抗氧化作用最强。没食子酸单体经研究表明具有抗氧化[5]、抗肿瘤[6,7]、抗乙肝病毒[8]、降糖降脂[9]等多种生物学活性。因此,本文采用薄层色谱法对过塘蛇药材进行定性鉴别,并采用 HPLC 法测定过塘蛇药材中指标成分没食子酸的含量,为过塘蛇药材的制剂开发和质量控制提供参考。……