高效液相色谱法测定精氨匹林在人血浆中的药物浓度

目的 :建立高效液相色谱法测定精氨匹林在人血浆中的药物浓度的方法。方法 :色谱柱采用YWGC18 柱 (4 6mm×250mm ,10μm) ,柱温控制在33℃ ,流动相为纯水 -乙腈 (96∶4 ,V/V)。血浆样品采用氯仿 -异丙醇 (95∶5 ,V/V)提取。结果 :精氨匹林的线性范围为0 97～125 0mg/L ,最低检测浓度为0 97mg/L。高、中、低3种浓度 (125 0、31 25、1 95mg/L)的日内、日间变异均小于10 %。本方法应用于8名健康受试者的血药浓度测定 ,获得了其药代动力学参数。结论 :本方法灵敏、精确、稳定 ,适用于精氨匹林生物样本的测定和药代动力学的研究

Determination of the Concentration of Argine Asprine in Human Plasma With HPLC

OBJECTIVE:To develop a HPLC method for determining the concentration of argine asprine in plasma MET_HODS:The analytical column was YWG C18(4 6mm×250mm,10μm) and kept analyzing at 33℃ The mobile phase consisted of a mixture of purified water-acetonitrile(96∶4,v/v)with 20μl of butylamine and 5μl of acetic acid in per 100ml mobile phase And the plasma sample was extracted with iso-propyol alcohol-chloroform(95∶5,v/v) RESULTS:The calibration curve was linear within the range of 0 97～125 0mg/L plasma concentration and the detective limit was 0 97mg/L The RSDs for inter-day and intra-day in sample of 125 0,31 25,1 95mg/L were less than 10% This method has been used for determining plasma drug concentrations in 8 healthy volunteers and the pharmacokinetic parameters of the drug were obtained CONCLUSION:The method was sensitive,accurate and stable,which is suitable for the study of bioavailibility and pharmacokinetics of argine asprine