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Collisional ion activation in the ion trap by a three‐step tickle function
Author(s) -
Paradisi Cristina,
Traldi Pietro,
Vettori Umberto
Publication year - 1993
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290070607
Subject(s) - chemistry , ion , phase (matter) , atomic physics , activation energy , analytical chemistry (journal) , physics , chromatography , organic chemistry
The effects of performing ion resonance collisional activation in two steps separated by an intermediate phase were studied. The results show that the time duration and the tickle frequency setting used in this intermediate stage determine the phase of the tickle output in the second activation stage which it is essential to control, to ensure the efficiency of the activation process. The following interpretation is offered: the activation process can be efficiently resumed after a period of interruption, provided the tickle voltage in the second activation step is in‐phase with the axial motion of the ions induced by the tickle field during the first activation stage.