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作 者:庄莹[1] 李丹[1] 宋敏[1] 杭太俊[1] 文爱东[2] 杨林[2]
机构地区:[1]中国药科大学药物分析室,南京210009 [2]第四军医大学西京医院国家药品临床研究基地,西安710032
出 处:《中国新药杂志》2008年第20期1794-1797,共4页Chinese Journal of New Drugs
摘 要:目的:建立西尼地平血药浓度的液相色谱串联质谱(LC-MS/MS)测定法,研究中国健康男性受试者口服西尼地平胶囊后的血浆药动学特点。方法:20名健康男性受试者单剂量口服10mg西尼地平胶囊,以尼莫地平为内标,采用液相色谱串联质谱(LC-MS/MS)正离子选择性反应检测测定血浆中的西尼地平浓度,使用DAS软件计算药动学参数。结果:西尼地平在0.1~20μg·L^-1范围内线性关系良好(r〉0.9967),最低定量限为0.10μg·L^-1日内、日1"4精密度(RSD)均〈15%,绝对回收率〉80%。口服10mg西尼地平胶囊后的主要药动学参数分别为:Cmax为(14.6±5.0)μg·L^-1,Tmax为(d±1.1)h,t1/2为(11.3±5.8)h,AUCD~48h为(77.5±31.3)h·μg·L^-1,AUC00-∞。为(82.2±35.8)h·μg·L^-1,MRT为(12.3±5.0)h,CL/F为(144.9±64.6)L·h^-1,V/F为(2253±1592)L。结论:建立的LC—MS/MS测定法专属准确,灵敏度高,可用于西尼地平血药浓度分析及药动学研究。Objective:To establish a selective and sensitive LC-MS/MS method for the determination of cilnidipine in human plasma, and to study the pharmacokineties in healthy volunteers. Methods: In 20 healthy volunteers, a single dose of eilnidipine capsules (10 mg) was orally given. The concentrations of eilnidipine in plasma were determined by LC-MS/MS with positive ion SRM detection using nimodipine as the internal standard; the pharmacokinetie parameters were calculated using DAS software. Results: The linear calibration curves were obtained in the concentration range from 0. 10 to 20 μg· L ^-1 ( r 〉 0. 996 7). The lower limit of quantification was 0. 10 μg· L ^-1 The intra- and inter-day RSDs over the entire concentration range were less than 15%. The recoveries were more than 80%. The main plasma pharmacokinetic parameters after a single oral dose of cilnidipine capsule were as follows : Cmax ( 14.6 ± 5.0) μg· L ^-1 , Tmax (4 ± 1.1 ) h, t1/2 ( 11.3 ± 5.8 ) h, MRT ( 12.3 ± 5.0) h, AUC0-48h(77.5±31.3) h·μg· L ^-1 , AUC0- ∞(82.2 ±35.8) h·μg· L ^-1 , CL/F(144.9±64.6) L·h^-1, andV/F (2 253 ± 1 592) L. Conclusion: The established LC-MS/MS detection method is sensitive, aecurate and suitable for studying pharmaeokinetic of cilnidipine.
分 类 号:R917.1[医药卫生—药物分析学] R972.4[医药卫生—药学]
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