Extended Data Fig. 3: CID of characteristic electron ionization (EI) fragments of standard glucononitrile acetate in GC-MS/MS. | Nature Geoscience

Extended Data Fig. 3: CID of characteristic electron ionization (EI) fragments of standard glucononitrile acetate in GC-MS/MS.

From: Bio-essential sugars in samples from asteroid Bennu

Extended Data Fig. 3: CID of characteristic electron ionization (EI) fragments of standard glucononitrile acetate in GC-MS/MS.

a, CID spectrum of the m/z 115 ion. b, CID spectrum of the m/z 145 ion. c, CID spectrum of the m/z 103 ion. d, EI spectrum of glucononitrile acetate. e, CID spectrum of the m/z 212 ion. f, CID spectrum of the m/z 242 ion at a lower collision energy. g, CID spectrum of the m/z 242 ion at a higher collision energy. Precursor ions are shown in bold black, and the product ions measured for MRM are shown in bold red. CE: collision energy (Volts). Other aldohexoses produce identical EI and CID ions.

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