What are API 6A flanges?

api 5000 API 5000 LCMSMS system combines all the features of the API 4000 LCMSMS system with the additional benefits of improved sensitivity. api 5000?ab sciex api 5000?

apiktoto, The API 5000 System - 2005 The API 5000 system is launched and is the most sensitive triple quadrupole ever made. It includes innovative QJet technology, the first RF quadrupole used.