| 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 ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-100884 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
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.) |
