Focal Interest
Focal Interest

Mass Spectrometry Techniques and Applications

External reference: https://openalex.org/T10683

  1. Trace ethylene boosts nitrogen GC-MS sensitivity
    Adding trace ethylene to nitrogen carrier gas in GC-MS increases sensitivity 20-fold while maintaining 70 eV electron-ionization spectral patterns compatible with existing reference libraries.
  2. Functional groups strongly affect amino acid LC-MS derivatization
    Systematic evaluation of derivatization agents for LC-MS amino acid analysis identifies isoquinoline-6-carboxylic acid NHS ester as optimal, achieving nanomolar sensitivity and long-term stability.
  3. Headspace gas chromatography may support food authenticity analysis
    Static headspace sampling with cryogenic modulation GC×GC-TOFMS enables comprehensive volatile and chiral analysis of citrus essential oils, eliminating solvents while improving detectability for.
  4. Method distinguishes chiral α-hydroxy acids in complex samples
    MALDI-TIMS-MS platform with chiral derivatization for enantiomeric discrimination of α-hydroxy acids in tumor tissues and food samples with sensitivity to 5.8% enantiomeric ratios.