Citation
U. Fuchslueger et al., Capillary supercritical fluid chromatography mass spectrometry of phenolicMannich bases with dimethyl ether modified ethane as the mobile phase, ANALYT CHEM, 71(13), 1999, pp. 2324-2333
Citations number
19
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL CHEMISTRY
ISSN journal
00032700
→ ACNP
Volume
71
Issue
13
Year of publication
1999
Pages
2324 - 2333
Database
ISI
SICI code
0003-2700(19990701)71:13<2324:CSFCMS>2.0.ZU;2-J
Abstract
The analysis of phenolic Mannich bases-which are used as hardeners and acce
lerators for epoxy resins-by capillary supercritical fluid chromatography (
SFC) with dimethyl ether modified ethane as the mobile phase is described.
The elution properties of several different mobile phases with respect to a
mines are shown. SFC with UV detection is coupled via a custom-built interf
ace to a mass spectrometer with atmospheric pressure chemical ionization. T
wo technically important Mannich bases prepared bq different production pro
cesses are characterized and compared with respect to their byproducts. The
role of dimethyl ether during the ionization process and the fragmentation
of phenolic Mannich bases is discussed.