title: Electric field assisted thermal desorption ionization using an infrared laser.
abstract: A new technique has been developed for the formation of gas-phase electrons and ions by electric field assisted thermal desorption ionization at atmospheric pressure. Experiments were carried out using a sharp tungsten wire tip coated with a thin solid sample film which was irradiated by a 10.6 µm infrared laser. By applying a strong electric field on the laser-irradiated tungsten wire tip, abundant ions such as alkali ions, halide ions, and also multiply charged negative ions S(2)O(6)(2-) and S(2)O(8)(2-), were formed. Copyright 1999 John Wiley & Sons, Ltd.
authors.affiliation: Faculty of Engineering, Yamanashi University, Takeda-4, Kofu 400, Japan.
authors.initials: F
authors.lastname: Matsushita
authors.initials: H
authors.lastname: Fukasawa
authors.initials: T
authors.lastname: Sato
authors.initials: I
authors.lastname: Kudaka
authors.initials: K
authors.lastname: Hiraoka