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 (A...

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Bibliographic Details
Published in:Journal of Chromatography A 2008-12, Vol.1213 (1), p.83-87
Main Authors: Vo, Thuy Diep Thanh, Himmelsbach, Markus, Haunschmidt, Manuela, Buchberger, Wolfgang, Schwarzinger, Clemens, Klampfl, Christian W.
Format: Article
Language:English
Subjects:
Capillary zone electrophoresis
Electrophoresis, Capillary - methods
Electrospray ionization mass spectrometry
Formaldehyde - chemistry
Ion-trap mass spectrometry
Mass Spectrometry - methods
Melamine–formaldehyde resins
Quadrupole-time-of-flight mass spectrometry
Resins, Synthetic - analysis
Resins, Synthetic - chemistry
Spectrophotometry, Ultraviolet
Triazines - analysis
Triazines - chemistry
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Summary: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.
ISSN:0021-9673
DOI:10.1016/j.chroma.2008.07.002