Abstract

Poster Presentations

Day 3, May 19(Fri.)  Room P (Multi-purpose Hall)

Application of Derivatization for DART ionization

(JEOL)
oKazuko Oka, Takaya Satoh, Masaaki Ubukata, Akihiko Kusai, Haruo Iwabuchi

Direct Analysis in Real Time(DART) has been coupled with the AccuTOFTM LC-plus 4G atmospheric pressure ionization Time-of-Flight mass spectrometer to permit high-resolution, exact mass measurements of gases, liquids and solids. We studied the real-time derivatization such as methylation, acethylation and trimethylsilylation in DART ionization for sensitivity enhancement. In Me-derivatized compounds such as citrulline, L-cystathionine, it was also possible to confirm the existence of a compound capable of higher sensitivity detection than underivatized.