𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Electric field assisted thermal desorption ionization using an infrared laser

✍ Scribed by Fumiko Matsushita; Hiroko Fukasawa; Tetsuya Sato; Ichiro Kudaka; Kenzo Hiraoka

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
61 KB
Volume
13
Category
Article
ISSN
0951-4198

No coin nor oath required. For personal study only.

✦ Synopsis

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 mm 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 2Γ€ and S 2 O 8 2Γ€ , were formed.

πŸ“œ SIMILAR VOLUMES

Infrared matrix-assisted laser desorptio
Infrared matrix-assisted laser desorption/ionization using OH, NH and CH vibrational absorption
✍ Jay D. Sheffer; Kermit K. Murray πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 88 KB πŸ‘ 2 views

The matrices succinic acid (butanedioc acid), caffeic acid (3,4-dihydroxycinnamic acid), and 4-nitroaniline were used to obtain matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectra using a Nd:YAG-pumped optical parametric oscillator (OPO). The matrices were used to ionize

Matrix-assisted laser desorption/ionizat
Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry using an inorganic particle matrix for small molecule analysis
✍ Kinumi, Tomoya; Saisu, Takumi; Takayama, Mitsuo; Niwa, Haruki πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 112 KB πŸ‘ 2 views

Fine metal or metal oxide powder as an alternative to conventional organic matrices in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) has been utilized successfully for lower molecular mass analytes, poly(ethylene glycol) 200 (PEG 200) and methyl stearate.

An Investigation into the Importance of
An Investigation into the Importance of Polymer–Matrix Miscibility Using Surfactant Modified Matrix-assisted Laser Desorption/Ionization Mass Spectrometry
✍ Camille M. Kassis; Joseph M. DeSimone; Richard W. Linton; Gary W. Lange; Robert πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 138 KB πŸ‘ 1 views

Sample preparation, namely finding a suitable matrix-analyte combination, has been one of the most important concerns in using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) for synthetic polymers. Herein we report the novel use of surfactants in the polymer sample preparat