Record Display for the EPA National Library Catalog


Main Title High-Sensitivity Thermospray Ionization Mass Spectrometry of Dyes.
Author Yinon, J. ; Jones, T. L. ; Betowski, L. D. ;
CORP Author Environmental Monitoring Systems Lab., Las Vegas, NV. ;Weizmann Inst. of Science, Rehovoth (Israel).
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/089;
Stock Number PB90-100884
Additional Subjects Dyes ; Chemical analysis ; Mass spectroscopy ; Detectors ; Chemical analysis ; Sensitivity ; Sulfonates ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB90-100884 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
A series of dyes belonging to different chemical classes have been analyzed by thermospray (TSP) ionization mass spectrometry using a modified source containing a wire-repeller. Detection limits were determined and found to be in the range 0.05-20ng, which are lower by a factor of 10-400 than previously results. Positive-ion TSP mass spectra of some sulfonated dyes could be recorded for the first time owing to the increased sensitivity. Losses of SO3Na and 2SO3Na as well as losses of Na and 2Na were observed. The losses of each one of these groups involved replacement by a hydrogen atom. (Copyright (c) 1989 John Wiley and Sons, Ltd.)