Abstract: Multiple Ion Monitoring of Alkylbenyene Carbon Number Distribution in Heavy AlkylbeneyeneWeng Zonglian;Ren Jingyan(Institute of Lineer Alkylbenzene Plent of JimingPetrochemical Corporation, Naming 210046,China)Received 1994-07-20Abstract:This paper deals with the direct introduction of sample and multiple ion monitoringto identify alkylbenzene carbon number distribution in heavy alky alkylbenyene.Keywords: multiple ion monitoring, heavy alkylbenzene, alkybenzene ,carbon numberdistribution,mass chromatography.