A quadrupole mass spectrometer (10) has at least two sets (14, 16) of electrodes in series, each set of electrodes being arranged to have a different r/ro ratio, wherein the r/ro ratio is that between the electrode radius (r) and the radius of the aperture between electrodes (ro).
申请公布号
WO03065403(A3)
申请公布日期
2003.09.25
申请号
WO2003GB00316
申请日期
2003.01.28
申请人
UNIVERSITY OF LIVERPOOL;TAYLOR, STEPHEN;GIBSON, JOHN, RAYMOND
