Method for space-charge control of daughter ions in ion traps

Details Method for space-charge control of daughter ions in ion traps Method for space-charge control of daughter ions in ion traps

1998-02-27

1999-08-10

Nguyen, Kiet T.

Radiant energy

Ionic separation or analysis

Methods

H01J 4942

Patent

active

059362413

ABSTRACT:
The invention consists of deriving the control of the space charge in the ion trap for the initial daughter ion spectrum from the filling rates of previous normal spectra, from the abundance ratio of the parent ions to be isolated to the total ions in the spectrum, and from the at least roughly known isolation and fragmentation yields. For further daughter ion spectra, the resulting measured overall filling rate with daughter ions may be used. The same applies in an analogue way to spectra of isolated ions or of ions from MS.sup.n processes.

REFERENCES:
patent: 5083019 (1992-01-01), Spangler
patent: 5420423 (1995-05-01), Linden
patent: 5422482 (1995-06-01), Nakajima et al.

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