Potential of measured relative shifts in collision cross section values for biotransformation studies.

ABSTRACT: Ion mobility spectrometry-mass spectrometry (IMS-MS) separates gas phase ions due to differences in drift time from which reproducible and analyte-specific collision cross section (CCS) values can be derived. Internally conducted in vitro and in vivo metabolism (biotransformation) studies indicated repetitive shifts in measured CCS values (CCS_meas) between parent drugs and their metabolites. Hence, the purpose of the present article was (i) to investigate if such relative shifts in CCS_meas were biotransformation-specific and (ii) to highlight their potential benefits for biotransformation studies. First, mean CCS_meas values of 165 compounds were determined (up to n = 3) using a travelling wave IMS-MS device with nitrogen as drift gas (^TWCCS_N

SUBMITTER: Lanshoeft C 

PROVIDER: S-EPMC10761390 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature