摘要
目的:建立正相高效液相色谱法测定人血浆中的氢氯噻嗪(HCTZ)浓度,研究正常人po后的药动学。方法:色谱柱采用YWG-SiO2柱,以氯仿-甲醇-冰乙酸(500∶50∶6)为流动相,紫外λ/nm272检测。血浆样品在酸性条件下用乙酸乙酯提取吹干浓缩后进样。对10名健康志愿者po复方卡托普利片(含HCTZ18mg)后不同时间的血药浓度进行测定。结果:方法的平均回收率为94.7%。血浆最低检测限5ng/ml。正常人体内HCTZ消除相平均T1/2为2.8h;TPK为2.5h;cmax为97ng/ml。结论:方法能满足HCTZ血药浓度监测和药动学研究的需要。
OBJECTIVE:Todetermineconcentrationofhydrochlorothiazide(HCTZ)inhumanplasmawithNP-HPLC,andstudypharmacokineticsofthedrugfolowingasingleoraldoseinnormalsubjects.METHOD:Theana-lyticalcolumnwaspackedwithYWG-SiO2.Themobilephaseconsistedofchloroform-methanol-aceticacid(500∶50∶6),anddetectedatλ/nm272.Hydrochlorothiazideinplasmasamplewasextractedbyethylacetate.RESULTS:Themeanrecoverywas94.7%,andminimumdetectableconcentrationwas5ng/ml.Themeanhalf-lifeofelimina-tionwas2.8h,apeakplasmalevelwasreachedat2.5h,andthemeancmax97ng/mlintenhealthyvolunteersafteroraladministrationof18mgHCTZ.CONCLUSION:ThemethodissuitableforthedeterminationofHCTZconcen-trationinhumanplasmaandforthestudyofpharmacokinetics.
出处
《中国药学杂志》
CAS
CSCD
北大核心
1996年第8期482-484,共3页
Chinese Pharmaceutical Journal