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Comparison of Positive and Negative Ion Clusters of Methanol and Ethanol Observed by Low Temperature Secondary Ion Mass Spectrometry
Author(s) -
Kosevich Marina V.,
Czira Gabor,
Boryak Oleg A.,
Shelkovsky Vadim S.,
Vékey Karoly
Publication year - 1997
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/(sici)1097-0231(19970830)11:13<1411::aid-rcm967>3.0.co;2-8
Subject(s) - chemistry , ion , cluster (spacecraft) , methanol , mass spectrometry , mass spectrum , alcohol , analytical chemistry (journal) , ethanol , molecule , secondary ion mass spectrometry , chromatography , organic chemistry , computer science , programming language
Positively and negatively charged cluster ions were produced from methanol and ethanol samples under low temperature secondary ion mass spectrometric conditions. Neat alcohol clusters [M n . H + ], [M n − H] − and mixed alcohol–water cluster sets [M n . (H 2 O) m . H + ] and [M n . (H 2 O) m − H] − sets were recorded as the most prominent peaks in the spectra. Clusters composed of up to 30 molecules have been observed. Distributions of these cluster series, and also some satellite ion clusters observed with lower abundances, are discussed. © 1997 John Wiley & Sons, Ltd.