Premium
Discrimination effects in inorganic ion‐cluster detection by secondary‐electron multiplier in mass spectrometry experiments
Author(s) -
Alexandrov M. L.,
Gall L. N.,
Krasnov N. V.,
Lokshin L. R.,
Chuprikov A. V.
Publication year - 1990
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290040104
Subject(s) - dynode , chemistry , kinetic energy , ion , electron multiplier , cluster (spacecraft) , analytical chemistry (journal) , alkali metal , mass spectrometry , electron , atomic physics , chromatography , electrode , nuclear physics , physics , organic chemistry , quantum mechanics , computer science , anode , programming language
Discrimination effects in secondary electron multipliers due to the differences in kinetic energy with which ions of different masses strike the dynode surface are investigated. The threshold energy at which ions of a particular mass can be detected is discussed. The efficiencies of such multipliers when used with cluster ions such as H + (H 2 O) N (where Cat + represents an alkali‐metal cation) are investigated and discussed, in terms of both the ‘kinetic’ and ‘potential’ emission coefficients.