Improved analysis of melamine-formaldehyde resins by capillary zone electrophoresis-mass spectrometry using ion-trap and quadrupole-time-of-flight mass spectrometers.
An improved method based on capillary zone electrophoresis (CZE) coupled to either ion-trap (IT) mass spectrometry (MS) or quadrupole-time-of-flight (Q-TOF) MS for the analysis of melamine-formaldehyde condensates is presented. Employing a formic acid-based electrolyte containing 50% acetonitrile (ACN) and MS detection up to 13 compounds could be determined in lab-made resins, synthesized by mixing formaldehyde and melamine in different ratios ranging from 1:1.5 to 1:4. The use of a Q-TOF-MS for detection allowed the assignment of molecular formulas for all 13 substances with high accuracy.
Vo
Thuy Diep Thanh
TD
Institute of Analytical Chemistry, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz, Austria.
Himmelsbach
Markus
M
Haunschmidt
Manuela
M
Buchberger
Wolfgang
W
Schwarzinger
Clemens
C
Klampfl
Christian W
CW
D019075:Electrophoresis, Capillary / Q000379:methods*; D005557:Formaldehyde / Q000737:chemistry; D013058:Mass Spectrometry / Q000379:methods*; D012117:Resins, Synthetic / Q000032:analysis* / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D014227:Triazines / Q000032:analysis* / Q000737:chemistry
D012117:Resins, Synthetic; D014227:Triazines; C504353:melamine formaldehyde; D005557:Formaldehyde; C011907:melamine