LC/MS/MS Analysis of Polymeric Isocyanates as Their HDI-DBA and IPDI-DBA Derivatives on Ascentis® Express C18
Materiali
Prodotti correlati
used together
CONDITIONS
sample preparation
SPE (Solid Phase Extraction)
sample/matrix
air
adsorbent tube
ASSET EZ4-NCO Dry Sampler (5028-U)
extraction
Contact Sigma-Aldrich Technical Services for extraction and full analytical protocol
column
Ascentis Express C18, 5 cm x 2.1 mm I.D., 2 μm particles (50811-U)
mobile phase
[A] 95:5 (0.05% formic acid in water):(0.05% formic acid in acetonitrile); [B] 95:5 (0.05% formic acid in acetonitrile):(0.05% formic acid in water
gradient
60 to 80% B in 2 min, hold for 3 min, to 100% B in 0.1 min, hold for 9.9 min, to 60% B in 0.1 min, hold for 3.9 mi
flow rate
0.4 mL/min
pressure
3626 psi (250 bar)
column temp.
35 °C
detector
MS/MS, ESI(+), MRM
injection
2.0 μL
Descrizione
Risultati analitici
This application demonstrates the simultaneous analysis of dibutylamine derivatized isocyanate HDI & IPDI monomers and oligomers on Ascentis Express columns.
Altre note
sample pretreatment: Samples were collected during a spray-painting application
Note legali
Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany