Infrared ion spectroscopy inside a mass-selective cryogenic 2D linear ion trap.

ABSTRACT: We demonstrate operation of the first cryogenic 2D linear ion trap (LIT) with mass-selective capabilities. This trap presents a number of advantages for infrared ion "action" spectroscopy studies, particularly those employing the "tagging/messenger" spectroscopy approach. The high trapping efficiencies, trapping capacities, and low detection limits make 2D LITs a highly suitable choice for low-concentration analytes from scarce biological samples. In our trap, ions can be cooled down to cryogenic temperatures to achieve higher-resolution infrared spectra, and individual ions can be mass selected prior to irradiation for a background-free photodissociation scheme. Conveniently, multiple tagged analyte ions can be mass isolated and efficiently irradiated in the same experiment, allowing thei

SUBMITTER: Cismesia AP 

PROVIDER: S-EPMC5690808 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature