Ion storage techniques

Ion storage technique for the ion trap analyser. By using resonance frequencies the ion trap can exclude ions of several miz values from storage (e.g. from the matrix) and collect selectively determined pre-selected analyte ions, also SIS. 

The past decade has seen an explosion in investigations of molecular ions using a variety of optical spectroscopic techniques in conjunction with trapping mass spectrometers. The mass selection and ion storage capabilities of instruments such as 3-D QITs and FT-ICR mass spectrometers provide valuable control over the ion population under investigation. Moreover, thanks to modem ion sources, the size of molecules is no longer a limitation for gas-phase ion spectroscopic studies. A number of spectroscopic techniques have been developed to probe gas-phase molecules that will be fruitful when applied to the spectroscopy of trapped ions. 

Schuessler, H. Eortson, E.T. Dehmelt, H.G. Hyperfine structure of the ground state of He+ by the ion-storage exchange-collision technique. Phys. Rev. 1969, 187, 5-38. 

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