AB Sciex 4000 QTrap / ABSciex 5500 QTrap

AB Sciex 4000 QTRAP & 5500 QTrap

Both Applied Biosystems QTrap triple quadrupoles are hybrid instruments which work as a typical QQQ, but can also be operated with trap-like functionality. This allows one to conduct SRM and MS3 analyses or to enrich (by trapping) to increase the probability of detecting low abundance ions.