【摘要】 目的 :建立测定苦参碱和氧化苦参碱血药浓度的HPLC法。方法 :血浆标本经碱化以氯仿 -正丁醇 (98∶2)提取 ,中性氧化铝柱净化 ,吹干后以乙腈 -无水乙醇 -磷酸水溶液 (80∶10∶8)为流动相 ,槐定碱为内标 ,经LichrosorbNH2 柱分离后在紫外波长220nm处检测。结果 :苦参碱和氧化苦参碱的血药浓度线性范围在1 25～40mg/L ,最低检测限为0 1mg/L(S/N=2)。苦参碱和氧化苦参碱高、中、低3种浓度的平均回收率分别为106 96 %和105 04 % ,日内、日间精密度分别小于13 %和7 %。结论 :此法为苦参碱和氧化苦参碱的血药浓度测定提供了一种简便可行的方法。更多还原

【Abstract】 OBJECTIVE:To established a method for determining matrine and oxymatrine in human plasma.METHODS:The plasma was extracted with chloroform-n-butyl alcohol(98∶2) after basification and purified with neutral alumina solid-phase extraction.Then it was eluted with a Lichrosorb-NH2 column and CH3CN-CH3CH2OH-H3PO4(80∶10∶8),detected at λ 220nm.RESULTS:The linear range was 1.25mg～40mg/L and the limit of detection was 0.1mg/L(S/N=2).The average recoveries of matrine and oxymatrine were 106.96% and 105.04%,respectively.RSDs of within-day and between-day were lower than 13% and 7% respectively.CONCLUSION:The present study provides a simple and reliable method for determining concentrations of matrine and oxymatrine in human plasma.更多还原