本文在国内首次报道了用反相高效液相色谱法测定酮康唑血浆浓度的方法及名正常人口服400 mg酮康唑的药代动力学研究。固定和为HITACHI GEL 3056(ODS),流动相为甲醇:pH 7.61的0.02 mol/L磷酸盐缓冲液(72:28;流速0.7ml/min,紫外检测波长247nm;最低检测限10ng;平均回收率92%以上;不同浓度水平测定结果的日内和日间变异系数均小于5%。体内动力学过程符合丌放性二室模型。其消除半衰期(T1/2β)为6.21±0.78h;表现分布容积(Vd)为0.84±0.48L/kg;血浆清除率(CL)为0.09±0.05L/(kg·h);峰浓度(Cm)为7.66±4.05μg/ml;达峰时间(Tm)为4.35±1.76h。
【英文摘要】
A reversed-phase high performance liquid chromatography (HPLC) method for the rapid determination of ketoconazole in human plasma is described.The column was 15 cm×4.0 mm ID stainless steel packed with HITACHI GEL 3056 (ODS). A guard column (PRECOLUMN) 5 cm×5.0 mm packed with YWG-C18H37(40μm) was attached to the primary column.The mobile phase consisted of methanol:0.02 mol/L phosphate buffer (pH 7.61)(72:28, vol/vol) and the flow rate was 0.7 ml/ min.Chromatography was performed wih variable UV monitor at ...