(19)
(11) EP 1 367 632 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.09.2004 Bulletin 2004/40

(43) Date of publication A2:
03.12.2003 Bulletin 2003/49

(21) Application number: 03253411.7

(22) Date of filing: 30.05.2003
(51) International Patent Classification (IPC)7: H01J 49/40, H01J 49/42
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 30.05.2002 GB 0212511
11.04.2003 GB 0308346

(71) Applicant: Micromass UK Limited
Manchester M22 5PP (GB)

(72) Inventors:
  • Bateman, Robert Harold
    Knutsford, Cheshire WA16 8NP (GB)
  • Giles, Kevin
    Timperley, Altrincham, Cheshire WA15 7RR (GB)
  • Pringle, Steve
    Hoddlesden, Darwen BB3 3PS (GB)

(74) Representative: Jeffrey, Philip Michael 
Frank B. Dehn & Co. 179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)

   


(54) Mass spectrometer


(57) A mass spectrometer is disclosed comprising a gas collision cell, reaction cell or collisional cooling cell 1 comprising a plurality of electrodes 2. DC potentials are progressively applied to the cell 1 so that ions are urged along the cell 1.






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