高智席等
摘要:建立了反相高效液相色谱法测定苕叶细辛(Asarum Insigne Diels)中马兜铃酸A含量的方法。色谱柱为Shim-pack VP-ODS(150 mm×4.6 mm,5 μm),以甲醇∶0.1%冰乙酸=70∶30(V/V)为流动相,检测波长为225 nm。结果表明,马兜铃酸A在0.087 4~8.098 0 μg/mL(R2=0.999 7)范围内与峰面积呈良好线性关系,平均回收率为96.95%~99.42%,相对标准偏差为2.63%~3.72%,检测限为0.003 μg/mL。该方法灵敏度高、操作简便、结果准确、重复性好,可用于苕叶细辛中马兜铃酸A的测定。
关键词:苕叶细辛(Asarum Insigne Diels);马兜铃酸A;反相高效液相色谱法
中图分类号:O657.7+2 文献标识码:A 文章编号:0439-8114(2015)12-3008-02
DOI:10.14088/j.cnki.issn0439-8114.2015.12.054
Determination of Aristolochic acid A in Asarum Insigne Diels
from Different Places by HPLC
GAO Zhi-xi1,2, LI Si1, JIANG Zhong-yuan1, HU Hai-jun2, HAN Chang2, L?譈 Chao-yan2
(1. Laboratory of Utilization Research on Characteristic Resources in Qianbei, Zunyi 563002, Guizhou, China;
2.institute of Agricultural science and Technology, Zunyi Normal College,Zunyi 563002, Guizhou, China)
Abstract: Aristolochic acid A in Asarum insigne Diels was determined by reversed-phase high performance liquid chromatography (HPLC). The analysis was performed with Shim-pack VP-ODS column(150 mm × 4.6 mm,5 μm) with the mobile phase of MeOH∶0.1%acetic acid=70∶30(V/V) at 225 nm. The results showed that the Aristolo chicacid A had a good linear relationship in the range of 0.087 4~8.098 0 μg/mL(R2=0.999 7). The average recoveries were 96.95%~99.42% with RSD of 2.63%~3.72%, and the detection limit was 0.003 μg/mL. This method is sensitive, convenient, accurate and reproducible for determining aristolochic acid A in Asarum insigne Diels.
Key words: Asarum insigne Diels; aristolochic acid A; RP-HPLC
苕叶细辛(Asarum insigne Diels)为马兜铃科细辛属植物,常作中草药使用,以全草入药,具有祛风散寒、止咳祛痰、活血解毒、止痛之功效,临床上用于治疗风寒感冒、风湿性关节疼痛、咳嗽、跌打损伤等。马兜铃酸A为硝基菲酸类化合物,可作用肾小管上皮细胞、肾间质成纤维细胞,降低肾小球滤过率,使血、尿肌酐增加,引起肾衰竭,急性马兜铃酸肾病、肾小管功能障碍型马兜铃酸肾病、慢性马兜铃酸肾病及癌症等[1,2]。因此分析苕叶细辛中的马兜铃酸A对指导苕叶细辛的用药量具有重要意义。目前分析马兜铃酸A的方法包括高效液相色谱法[3,4]、薄层色谱法[5]。本试验建立了反相高效液相色谱法测定马兜铃酸A含量方法,其灵敏度高,分离效果好,为细辛属植物中马兜铃酸A的含量分析提供参考。
1 材料与方法
1.1 材料
马兜铃酸A标准品(110746-200507)购于中国药品生物制品检定所,分析纯甲醇购于成都市科龙化工试剂厂,去离子水。所有溶液使用前均由0.45 μm孔径的滤膜过滤。市售5批苕叶细辛样品由遵义医学院黎刚老师鉴定,0~5 ℃保藏待用。……