顶空气相色谱法测定盐酸罗匹尼罗原料药的溶剂残留
2016-01-11张小妮,刘雪峰,王嫦鹤等
·药物分析·
顶空气相色谱法测定盐酸罗匹尼罗原料药的溶剂残留
张小妮1,刘雪峰2,王嫦鹤2,刘海静1,2*
(1.陕西中医药大学,咸阳712046;2.陕西省食品药品检验所,西安710065)
摘要:目的建立顶空毛细管气相色谱法测定盐酸罗匹尼罗中有机溶剂残留。方法采用毛细管色谱柱DB-624(30 m×320 mm×1.8 μm),载气为氮气,流速1.5 mL·min-1,分流比1∶1;FID检测器,进样口温度为200 ℃,检测器温度为250 ℃;程序升温,初始温度35 ℃,维持5 min,以10 ℃·min-1的升温速率升至240 ℃,维持5 min;顶空进样,顶空瓶平衡温度为100 ℃,平衡时间30 min。结果甲醇、无水乙醇、二氯甲烷、正己烷、乙酸乙酯、吡啶的线性范围分别为127.5~1 020(r=0.998 7),75.09~600.7(r=0.996 7),15.03~120.3(r=0.999 7),7.212~57.70(r=0.999 4),125.6~1 005(r=0.999 2)和5.256~42.05(r=0.998 7),线性关系良好。平均回收率为96.7%,96.1%,95.5%,93.6%,92.7%和92.2%,其RSD分别为1.6%,1.2%,2.3%,2.7%,3.5%和3.0%。结论所建立的方法准确、简便、重复性好,可用于盐酸罗匹尼罗原料药中6种有机溶剂残留的测定。
关键词:顶空气相色谱法;盐酸罗匹尼罗原料药;溶剂残留
doi:10.3969/j.issn.1004-2407.2015.06.013
中图分类号:R927.2文献标志码:A
作者简介:张小妮,女,硕士研究生
收稿日期:(2015-03-02)
Determination of residual solvents in ropinirole hydrochloride by headspace gas chromatography
ZHANG Xiaoni1,LIU Xuefeng2,WANG Changhe2,LIU Haijing1,2*(1. Shaanxi University of Chinese Medicine,Xianyang 712046,China;2. Shaanxi Institute for Food and Drug Control,Xi′an 710065,China)
Abstract:ObjectiveTo establish a headspace capillary GC method for the determination of residual solvents in ropinirole hydrochloride. MethodsThe experimental condition was as follows:ADB-624 capillary column(30 m×320 mm×1.8 μm) was used, N2 was used as the carrier gas at a flow rate of 1.5 mL·min-1,and split rate was 1∶1;The injector temperature was 200 ℃ and the FID detector was 250 ℃;The oven temperature was initially held at 35 ℃ for 5 min and then programmed to 240 ℃ at 10 ℃·min-1 and held for 5 min;The headspace sampling was used at heated temperature 100 ℃ for 30 min. ResultsThe linear ranges of methanol,ethanol,methylene,chloride,n-hexane,ethylacetate,pyridine were 127.5-1 020(r=0.999 17), 75.09-600.7(r=0.996 7),15.03-120.3(r=0.999 7),7.212-57.70(r=0.999 4), 125.6-1 005(r=0.999 2)and 5.256-42.05(r=0.998 7), respectively.The average recoveries were 96.7%,96.1%,95.5%,93.6%,92.7% and 92.2%, respectively,and the RSD were 1.6%,1.2%,2.3%,2.7%,3.5% and 3.0%, respectively. ConclusionThe method is accurate,and repeatable. It can be applied for the determination of 6 residual solvents in ropinirole hydrochloride.
Key words: headspace GC;ropinirole hydrochloride;residual solvents
*通信作者:刘海静,女,硕士生导师,主任药师
盐酸罗匹尼罗化学名为4,2-二正丙基胺乙基-1,3-二氢-2H-吲哚-2-酮盐酸盐,分子式为C16H24N20·HCl,是一种强效的选择性非麦角碱类多巴胺D2-受体激动剂[1],主要用于治疗帕金森病和中度到重度的不宁腿(多动腿)综合征。1996年首次在英国上市,商品名Requip,1997年获FDA批准在美国上市[2]。目前该药在临床上已广泛应用,前景良好,但国内还未见有关盐酸罗匹尼罗中残留溶剂测定的报道。根据不同厂家的工艺资料,本品在合成、纯化及精制过程中可能涉及了甲醇、无水乙醇、二氯甲烷、正己烷、乙酸乙酯……
