排风藤茎叶果中番茄碱的含量测定  

Content Determination of Tomatine in Stems,Leaves and Fruits of Solanum cathayanu

作　　者：董文娟[1] 李双双[1] 邹坤[1] 程凡[1] 周媛[1] 

机构地区：[1]三峡大学化学与生命科学学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2012年第1期89-91,共3页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(21002058)

摘　　要：目的:采用RP-HPLC法测定排风藤茎叶果中番茄碱的含量.方法:建立RP-HPLC法测定排风藤茎、叶、果中番茄碱含量的方法.色谱柱为YMC-Pack ODS-AA(150mm×4.6mm,5μm),流动相为乙腈-水(90∶10,v.v-1),流速为1mL.min-1,柱温为30℃,紫外检测波长为203nm.线性范围:0.10～0.60mg.mL-1(相关系数r=0.999 7).结果:测得排风藤茎叶果中番茄碱的含量分别为1.104mg.g-1、0.494mg.g-1、1.030mg.g-1;RSD分别为2.60%、2.40%、2.80%;平均回收率为97.6%,RSD为2.93%(n=9).结论:该方法快速、简便、准确度高,可为开发利用三峡库区民间中草药排风藤提供研究基础.The contents of tomatine in stems,leaves and fruits of Solanum cathayanu were determined by RP-HPLC,using external reference method.RP-HPLC determination was established.The analyte was separated on a YMC-Pack ODS-AA column（150 mm × 4.6 mm,5 μm） at 30 ℃ with mobile phase contained acetonitrile-water（90 ： 10,v·v-1） at a flow rate of 1 mL·min-1 followed by UV detection at 203 nm.The calibration curve was well linear over the concentration range from 0.10 to 0.60 mg·mL-1（r=0.999 7）;and the limit of detection was 0.01 mg·mL-1.The contents of tomatine in stems,leaves and fruits of Solanum cathayanu are 1.104,0.494,and 1.030 mg·g-1,respectively.The average recovery is 97.6% with a RSD of 2.93%（n=9）.This method is fast,simple and accurate,and can provide the theoretical basis for further exploration of Solanum cathayanu.

关 键 词：番茄碱 排风藤茎叶果 含量测定 RP-HPLC 

分 类 号：R284[医药卫生—中药学]