Abstract

Poster Presentations

Day 3, May 17（Wed.）　　Room P (Foyer, Room 1004-1007)

3P-09　　PDF

Study on the reactions of sample molecules with regent ions produced by corona discharges under specific gas atmospheres

(Univ. Yamanashi)
^oYuta Yamazawa, Satoshi Ninomiya, Kenzo Hiraoka

Atmospheric pressure chemical ionization (APCI) is a versatile method suitable for ionizing gaseous molecules under atmospheric pressure conditions and is frequently used for ambient mass spectrometry. However, it is difficult to clarify the ion-molecule reactions in air corona discharge because the atmosphere contains various gas molecules such as nitrogen, oxygen, carbon dioxide, argon, and water vapor. In this study, the ion-molecule reactions of the regent ions produced by corona discharges under specific gas atmospheres have been investigated using a cylindrical discharge device constructed in our laboratory. Organic solvents such as ethanol, methanol, hexane, cyclohexane, toluene, and benzene were used as samples. H abstraction by CO3− was observed for hexane, cyclohexane, methanol, ethanol, and toluene, but no reactions were observed for benzene.