✦ LIBER ✦

Resonant laser ablation as a selective metal ion source for gas-phase ion molecule reactions

✍ Scribed by C.G. Gill; A.W. Garrett; P.H. Hemberger; N.S. Nogar

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 450 KB
Volume: 7
Category: Article
ISSN: 1044-0305
DOI: 10.1016/1044-0305(96)85612-1

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✦ Synopsis

Resonant laser ablation (RLA) is used as a source to selectively generate multiple metal ion species from the same sample. The capability of rapidly changing metal ions for gas-phase ion chemistry studies is a significant advantage in ion-molecule chemistry. The simple experimental arrangement uses relatively modest laser pulse energies ( I 25 pJ/pulse) from a tunable dye laser to desorb and selectively ionize different metal atoms from a multicomponent sample. In turn, this allows the chemistry of several components to be investigated without breaking vacuum or altering the experimental geometry. This work demonstrates the use of RLA as a selective source of several reagent metal ions for gas-phase ion chemistry investigations. In particular, the reactivity of acetone with Cr+,Fe+,Ni+, and Cu+ was examined for metal ions selectively created by RLA from a standard steel sample. (1 Am Sot Mass Spectrom 1996, 7, 664-667

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