Main Title |
Particle Beam Liquid Chromatography-Electron Impact Mass Spectrometry of Dyes. |
Author |
Yinon, J. ;
Jones, T. L. ;
Betowski, L. D. ;
|
CORP Author |
Environmental Monitoring Systems Lab., Las Vegas, NV. |
Publisher |
cNov 89 |
Year Published |
1989 |
Report Number |
EPA/600/J-89/320; |
Stock Number |
PB90-198680 |
Additional Subjects |
Dyes ;
Chemical analysis ;
Mass spectroscopy ;
Spectrum analysis ;
Azo dyes ;
Performance evaluation ;
Chemical bonds ;
Experimental design ;
Reprints ;
Environmental monitoring ;
Liquid chromatography ;
Electron impact ;
High performance liquid chromatography
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB90-198680 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
12p |
Abstract |
Dyestuffs are of major environmental interest because of their widespread use as colorants in a variety of products, such as textiles, paper, leather, gasoline and foodstuffs. Synthetic intermediates, byproducts and degradation products of these dyes could be potential health hazards owing to their toxicity and/or carcinogenicity. A liquid chromatograph was interfaced with a triple quadrupole mass spectrometer by means of a particle beam-type interface. The system was used for the analysis and characterization by electron impact mass spectra of a series of commercial dyes. The pure dyes were separated from their impurities with a reversed-phase C18 column using methanol-water as the mobile phase. Detection limits were determined using the system as a single quadrupole mass spectrometer. Sensitivity for dyes was found to be two to three orders of magnitude worse than with thermospray ionization using a wire repeller. Characterization of the azo dyes could be achieved by observing typical fragment ions formed by cleavage of the N-C and C-N bond on either side of the azo linkage and/or cleavage of the N=N double bond with transfer of two hydrogen atoms to form an amine. (Copyright (c) 1989 Elsevier Science Publishers B.V.) |
Supplementary Notes |
Pub. in Journal of Chromatography, v482 p75-85 1989. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Particle Beam Liquid Chromatography-Electron Impact Mass Spectrometry of Dyes. |
Category Codes |
99A; 71E; 68 |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/07 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
014419729 |
Origin |
NTIS |
Type |
CAT |