简介：AIM:ToestablishamethodtosimultaneouslydeterminethemainfivealkaloidsofCatharanthusroseusfortracesamples,ahigh-performanceliquidchromatography–electrosprayionization-tandemmassspectrometry(HPLC-ESI-MS/MS)analysismethodwasdeveloped.METHOD:ThefiveCatharanthusalkaloids,vinblastine,vincristine,vinleurosine,vindoline,andcatharanthinewerechromatographicallyseparatedonaC18HPLCcolumn.Themobilephasewasmethanol-15nmol?L–1ammoniumacetatecontaining0.02%formicacid(65:35,V/V).ThequantificationofthesealkaloidswasbasedontheMultipleReactionMonitoring(MRM)mode.RESULTS:Thismethodwasvalidated,andtheresultsachievedtheaimsofthestudy.Theintra-andinter-dayprecisionandaccuracyofthefivealkaloidswerewithin1.2%-11.5%(RSD%)and-10.9%-10.5%(RE%).Therecoveryratesofthefivealkaloidsofsampleswerefrom79.9%to91.5%.Thefiveanalyteswerestableatroomtemperaturefor2h,at4°Cfor12h,andat-20°Cfortwoweeks.ThedevelopedmethodwasappliedsuccessfullytodeterminethecontentofthefivealkaloidsinthreeplantpartsofthreebatchesofC.roseuswithaminuteamountcollectedfromthreeregionsofChina.CONCLUSION:TheHPLC-ESI-MS/MSmethodcanbeusedforthesimultaneousdeterminationoffiveimportantalkaloidsintraceC.roseussamples.