全血中西地那非的HPLC分析

目的建立血中西地那非的HPLC-DAD检测方法。方法用硅胶小柱分离提取血中的西地那非,HPLC-DAD分析。分析柱：Nova-pak C18（150×3.9mm）,5.0μm;保护柱：Phenom enex C18（ODS,4.0×3.0mm,Octade-cyl）;流动相A：0.06%三氟乙酸＋0.06%三乙胺＋0.25%乙腈,B：乙腈,梯度程序分离;DAD：230nm。结果血中西地那非线性检测范围为1.5-80.0μg/mL,最小检出限量为5ng,平均回收率：82.45%。结论本检验方法简单、准确、快速,适合于临床检测及刑事案件的快速分析。

Analysis of Sildenafil in blood by HPLC

Objective An analytical approach has been developed for determination of sildenafil blood with high performance liquid chromatography.Methods Sildenafil was extracted by solid phase extraction cartridges from blood and was separated by resered-phase gradient chromatography with DAD detection at 230nm.The analytical column was Nova-pak C18(150×3.9mm),5.0μm and the guard column was Phenomenex C18(ODS,4.0×3.0mm,Octadecyl).The mobile phase Was gradient mixture of acetonitrile(A) and 0.25% acetonitrile aqueous solution including 0.06% trifluoroacetic acid and 0.06% triethylamine (B).Results Linearity Was checked over the concentration range 1.5～80.0μg/mL.Limits of detection was 5.0ng.Average recovery was 82.45%.Conclusion This method is simple.exact and rapid.