3 connected quadrupole child mass spectrometers which have multistage mass spectrometry execution ability

摘要

Ionizing the substance, the method of including the stage which forms the continual ion line, analyzing the substance. The ion is bet on 1st mass spectrometry stage next. In one execution form, the ion in order to form the primary fragment ion, accelerating with known feature, is sent to the collision cell. These primary fragment ions next in order to promote secondary fragmentation, accelerating, are sent to the mass spectrograph of downstream. In another execution form of invention, the ion, without causing fragmentation, passing the collision cell, from the collision cell, accelerating next, gathering the mass spectrograph or the ion it is sent to the low pressure division which can make rod set in order the Cori mate to do. You can do this, under the condition for promoting fragmentation. As for operating condition of low pressure division, it seems that promotes the collection or retention of the ion which depends on the mass of the ion, furthermore details are low, it seems that removes the mass ion, it is possible to make a condition. Because of this, it cools the primary fragment ion, continues, is a primary fragment ion energy after dissipating, forming the secondary fragment ion from primary fragment ion becomes possible. Depending, control of secondary fragmentation process becomes possible, in order to analyze the complicated ion the opportunity is offered many.