DIRECT COUPLING OF SEMI-MICRO LIQUID-CHROMATOGRAPHY AND SONIC SPRAY IONIZATION MASS-SPECTROMETRY FOR PESTICIDE ANALYSIS

Authors
HIRABAYASHI Y TAKADA Y HIRABAYASHI A SAKAIRI M KOIZUMI H
Citation
Y. Hirabayashi et al., DIRECT COUPLING OF SEMI-MICRO LIQUID-CHROMATOGRAPHY AND SONIC SPRAY IONIZATION MASS-SPECTROMETRY FOR PESTICIDE ANALYSIS, Rapid communications in mass spectrometry, 10(15), 1996, pp. 1891-1893
Citations number
10
Categorie Soggetti
Spectroscopy,"Chemistry Analytical
Journal title
Rapid communications in mass spectrometry → ACNP
ISSN journal
09514198
Volume
10
Issue
15
Year of publication
1996
Pages
1891 - 1893
Database
ISI
SICI code
0951-4198(1996)10:15<1891:DCOSLA>2.0.ZU;2-T
Abstract
Direct coupling of semi-micro liquid chromatography and sonic spray io nization mass spectrometry is demonstrated and shown to be a very powe rful technique for pesticide analysis. Direct coupling is achieved by using a high flow rate of nitrogen gas in sonic spray ionization and a high operating temperature in the sampling orifice of the atmospheric ionization mass spectrometer. The detection limit for simazine is abo ut 300 fmol based on quantitative analysis in the range between 1 pmol and 1 nmol. A mixture of three pesticides was successfully analyzed u sing semi-micro liquid chromatography/mass spectrometry.