A. N. Bazhenov, S. V. Bulovich, L. N. Gall', A. V. Kretinina, M. N. Lapushkin, N. R. Gall', “Mechanism of fragmentation and atomization of molecular ions in gasdynamic transport cell”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2010, Volume 36, Issue 7,Pages <nobr>45

This article is cited in 3 papers

Mechanism of fragmentation and atomization of molecular ions in gasdynamic transport cell

A. N. Bazhenov^abcd, S. V. Bulovich^abcd, L. N. Gall'^abcd, A. V. Kretinina^abcd, M. N. Lapushkin^abcd, N. R. Gall'^abcd

^a The All-Russia Scientific Research Institute of Geology and Mineral Resources of the World Ocean named after academician I. S. Gramberg, Saint-Petersburg
^b St. Petersburg Polytechnic University
^c Institute for Analytical Instrumentation, Russian Academy of Sciences, St. Petersburg
^d Ioffe Institute, St. Petersburg

Abstract: The fragmentation of molecular ions formed upon the electrospraying of a sample and transported through the gasdynamic system of a mass spectrometer equipped with an IESAP (Ion Extraction from Solution at Atmospheric Pressure) source has been experimentally studied. It is established that ion fragmentation in a Kantorowicz–Gray type cell takes place in the immediate vicinity of a skimmer port, apparently, as a result of collisions between ions (accelerated in an electric field) and stagnant gas. Molecular mechanisms of fragmentation are considered and it is concluded that this process can take place in a single ion-molecule collision event.

Received: 08.09.2009