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Observation of micelle solution of decyltrimethylammonium bromide by electrospray ionization mass spectrometry
Author(s) -
Nohara Daisuke,
Bitoh Mayumi
Publication year - 2000
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/1096-9888(200012)35:12<1434::aid-jms79>3.0.co;2-4
Subject(s) - chemistry , micelle , electrospray ionization , mass spectrometry , bromide , analytical chemistry (journal) , chromatography , electrospray , mass spectrum , ionization , capillary action , ion , organic chemistry , aqueous solution , materials science , composite material
A micelle solution of decyltrimethylammonium bromide (DTAB) was analyzed by electrospray ionization mass spectrometry. Finding an appropriate range of a capillary‐skimmer potential was a prerequisite for obtaining a satisfactory spectrum. The mean molecular weight of DTAB aggregates, 10,500, was deduced from a series of mass spectra acquired at different capillary‐skimmer potentials. The value was comparable with the micelle weight, previously determined by the light‐scattering method. Copyright © 2000 John Wiley & Sons, Ltd.