A new concept of Quad Analyser Multimode Mass Spectrometer Systems. 3 Mass spec in one HRGC, HPLC, DIP-MS, Provides following: 3 choice of mass filters to 1000, 1500 and 2000 +amu New and unique mass detector, modularly, rettrofitable , for GC, HPLC, DIP (direct probe) Best Sensitivity and great Resolution