HPLC-莹光法测定速效止泻胶囊中盐酸小檗碱含量.doc
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HPLC-莹光法测定速效止泻胶囊中盐酸小檗碱含量[摘要]目的:建立高效液相色谱-莹光法(HPLC-FLD)测定速效止泻胶囊中盐酸小檗碱含量的方法。方法:采用SunfireTMC185um,4.6×150mm色谱柱,柱温:30℃。流动相为乙腈-0.1%磷酸(20:80),流速1.0ml.Min-1,进样量为10ul,激发波长420nm,发射波长550nm。结果:盐酸小檗碱的保留时间为6±0.2min,在5.8885-41.2196μgmL-1范围内呈良好的线性关系,r=0.9999,平均回收率为99.49%,RSD=2.5%(n=6)。结论:该方法灵敏、专属性强、准确,能够较好地控制该产品的质量。
[关键词]HPLC-莹光检测;速效止泻胶囊,盐酸小檗碱;
[Abstract]Objective: To established a sensitive HPLC-FLD method for the determination of berberine hydrochloride in Suxiao Zhixie CapsulesMethods: The separation was performed on SunfireTM C18 5um,4.6×150mm column. The column temperature was 30℃. The mobile phase was acetonitrile-0.1%phasphoric acid(20:80).Flow rate was 1.0ml.Min-1,The injection volume was 10ul, Compounds was determind at λex420nm and λem550nm by fluorescence detector。Results: The retention time for berberine was 6±0.2 min with no interference peaks,The linear of berberine hydrochloride was in the range of 5.8885μgmL-1-41.2196μg?mL-1 (r=0.9999),average recovery was 99.49% and RSD was 2.5% (n=6). Conclusions:The method sensitive、credible and strong specificity. It can be used for quality control of Suxiao Zhixie Capsules.
[Key words]HPLC; FLD;uxiao Zhixie Capsules ;berberine hydrochloride
速效止泻胶囊具有清热利湿,收敛止泻的作用。用于赤痢、热泻,肠炎等。本品成分为拳参、盐酸小檗碱。处方为盐酸小檗碱120g,拳参180g,制成1000粒。每粒装0.3g(含盐酸小檗碱120mg),内容物为暗黄色细粉。原标准为《卫生部药品标准中药成方制剂》第十三册,对主成分只作鉴别,无含量测定,国家食品药品监督管理局标准(试行)YBYBYB,用高效液相色谱法紫外检测,高效液相色谱-莹光法(HPLC-FLD)测定未见报道,本文采用HPLC-莹光法建立了测定速效止泻胶囊中盐酸小檗碱含量的方法。经方法学考察,本法灵敏度高、专属性强、重复性好,可做为速效止泻胶囊的质量控制依据。
1仪器与试药
1.1仪器Waters e 2695 Separations Module 高效液相色谱仪(美国Waters); Waters 2475 Mulit λ Fluorescence Detecor检测器(美国Waters);色谱柱:SunfireTM C18 5um,4.6×150um(美国Waters);软件:Empower2数据处理系统(美国Waters)。Jk-2200超声清洗器,功率100w,频率40KHz。
1.2试剂乙腈为色谱纯(国药集团化学试剂有限公司),磷酸为分析纯。
盐酸小檗碱对照品(中国药品生物制品检定所,批号:110713-200911,含量86.8%,供含量测定用),速效止泻胶囊(不同的生产厂家3个批号:101001、100704、100503)。
2色谱条件
色谱柱:SunfireTM C18 5um,4.6×150mm,柱温:30℃。流动相为乙腈-0.1%磷酸(20:80),流速1.00ml.Min-1,进样量为10ul,莹光检测器:激发波长:420nm。发射
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