title: Gas chromatography connected to multiple channel electrospray ionization mass spectrometry for the detection of volatile organic compounds.
abstract: This work successfully connected gas chromatography (GC) to seven-channel electrospray ionization (ESI) mass spectrometry to separate and detect a mixture of volatile organic compounds. Gaseous analyte was eluted separately from a GC column and directed into the central channel of the ESI source. The analyte was protonated by ion-molecule reactions between the analyte and the ions which were generated by electrospraying the acidic solution through the outside six channels surrounding the central channel. Real-time analysis of the organic reaction involving volatile and thermally unstable compounds (dimethylhydrazine ⇌ azomethane + H(2)) was also achieved by continuously purging the air in the reaction vessel to the seven-channel ESI source.
authors.affiliation: Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, 804 Taiwan.
authors.forename: C Y
authors.initials: CY
authors.lastname: Lee
authors.forename: J
authors.initials: J
authors.lastname: Shiea