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Analysis of stereoisomers using KMD coupled with m/z and DTCCSN2 (Å2) parameters. (A) Three-dimensional (3D) scatter plot showing cholestane homologous series, where x-axis is m/z, y-axis is KMD-CH2, and z-axis is DTCCSN2. (B−C) IMS-MS spectra and their respective drift times for stereoisomers β,α,α(20R,24R)-24-ethylcholestane (B) and α,β,β(20R,24R)-24-ethylcholestane (C).
