FI-Chemiluminescence Determination of Cocaine Hydrochloride in Microemulsion Medium
摘 要
在酸性条件下,盐酸可卡因分子中氮原子被质子化后与阴离子AuCl4-形成离子缔合物,该缔合物被二氯甲烷带入含鲁米诺的氯化十六烷基三甲基铵反胶束微乳液中,离解出来的AuCl4-立即与鲁米诺产生化学发光,结果表明:发光强度与盐酸可卡因的质量浓度在0.001~10 mg·L-1范围内呈线性关系,据此提出了间接测定盐酸可卡因的微乳液介质-流动注射化学发光法。方法的检出限(3σ)为0.01 μg·L-1。以尿样和血清样品为基体,用标准加入法测定方法的回收率,测得回收率在95.0%~102.0%之间,相对标准偏差(n=5)在1.8%~3.2%之间。
Abstract
It was found that in an acidic medium, an ion association complex was formed between AuCl4- and the protonated nitrogen atom of cocaine hydrochloride, and this complex was extracted with dichloromethane and the extract was transfered into a reversed micellar microemulsion prepared by mixing cetyltrimethylammonium chloride (CTAC) and luminol. Then AuCl4- was released and reacted with luminol to produce chemiluminescence. Based on these facts, a FI-CL method for indirect determination of cocaine hydrochloride was proposed. Linearity range of the working curve was kept between 0.001-10 mg·L-1, with detection limit (3σ) of 0.01 μg·L-1. Test for recovery was made by standard addition method using samples of urine and blood serum as matrixes, results of recovery found were in the range of 95.0%-102.0% with RSD′s (n=5) in the range of 1.8%-3.2%.
中图分类号 O657.31
所属栏目
基金项目 重庆市科委资助项目(CSTC,2009BB8101),重庆市教委资助项目(KJ111301);重庆市科涪陵区科委资助项目(FLKJ,2010ABA1012)
收稿日期 2010/10/27
修改稿日期
网络出版日期
作者单位点击查看
备注朱乾华(1972),男,土家族,重庆石柱人,讲师,硕士,主要从事分子光谱分析。
引用该论文: ZHU Qian-hua. FI-Chemiluminescence Determination of Cocaine Hydrochloride in Microemulsion Medium[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2011, 47(9): 1052~1054
朱乾华. 流动注射化学发光法测定微乳液介质中盐酸可卡因[J]. 理化检验-化学分册, 2011, 47(9): 1052~1054
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】中华人民共和国药典委员会.中国药典(二部)[M].北京:化学工业出版社, 2005:470.
【2】ATRY O, OZTOP F. Quanitiative determination for cocaine HCL in synthetic binary mixtures by using spectrophotometric methods[J]. Anal Lett, 1998,31(15):2663-2678.
【3】WATANABE K, HATTORI H, NISHIKAWA M, et al. Simultaneous determination of cocaethylene and cocaine in blood by gas chromatography with surface ionization detection[J]. Chromatographia, 1997,44(1/2):55-58.
【4】原永芳,黄瑾,王增福.三阶导数光谱法同时测定鲍宁氏液中盐酸可卡因和苯酚的含量[J].华西药学杂志, 2000,15(5):375-376.
【5】SHI Wen-bing, YANG Ji-dong, HUANG Yu-ming. Ion-pair complex-based solvent extraction combined with chemiluminescence determination of chlorpromazine hydrochloride with luminol in reverse micelles[J]. J Pharmaceut Biomed, 2004,36(1):197-203.
【6】FUJIWARA T, MOHAMMADZAI I U, MURAYAMA K, et al. Solvent extraction coupled on-line to a reversed micellar mediated chemiluminescence detection system for trace-level determination of atropine[J]. Anal Chem, 2000,72(7):1715-1719.
【7】IMDADULLAH, TERUFUMI F, TAKAHIRO K. Solvent extraction and chemiluminescence determination of gold in silver alloy with luminol in reverse micelles[J]. Anal Chem, 1993,65(4):421-424.
【2】ATRY O, OZTOP F. Quanitiative determination for cocaine HCL in synthetic binary mixtures by using spectrophotometric methods[J]. Anal Lett, 1998,31(15):2663-2678.
【3】WATANABE K, HATTORI H, NISHIKAWA M, et al. Simultaneous determination of cocaethylene and cocaine in blood by gas chromatography with surface ionization detection[J]. Chromatographia, 1997,44(1/2):55-58.
【4】原永芳,黄瑾,王增福.三阶导数光谱法同时测定鲍宁氏液中盐酸可卡因和苯酚的含量[J].华西药学杂志, 2000,15(5):375-376.
【5】SHI Wen-bing, YANG Ji-dong, HUANG Yu-ming. Ion-pair complex-based solvent extraction combined with chemiluminescence determination of chlorpromazine hydrochloride with luminol in reverse micelles[J]. J Pharmaceut Biomed, 2004,36(1):197-203.
【6】FUJIWARA T, MOHAMMADZAI I U, MURAYAMA K, et al. Solvent extraction coupled on-line to a reversed micellar mediated chemiluminescence detection system for trace-level determination of atropine[J]. Anal Chem, 2000,72(7):1715-1719.
【7】IMDADULLAH, TERUFUMI F, TAKAHIRO K. Solvent extraction and chemiluminescence determination of gold in silver alloy with luminol in reverse micelles[J]. Anal Chem, 1993,65(4):421-424.
相关信息