Enantiomer assays of amino acid derivatives using tertiary amine appended trans-4-hydroxyproline derivatives as chiral selectors in the gas phase

Chiral differentiation of amino acids through binuclear copper bound tetramers by ion mobility mass spectrometry

“…Traditionally, a chiral selector is used to form diastereomers with the analyte enantiomers, and chiral recognition by mass spectrometry is based on comparison of generation of diastereomers in single-stage MS or dissociation of diastereomers in tandem MS [2][3][4][5][6][7][8][9][10][11].…”