Waters Micromass Quattro Ultima PT
Triple Quadupole mass spectrometer, Electrospray (ES) and Chemical ionisation (APcI) sources
Principle of operation
Ions are produced in the source and transferred to the mass spectrometer via two cones. The ions follow a Z-shaped pathway, while the neutrals and the solvent go straight. The first quadrupole can be used as an ion guide (RF only) in MS mode, or as a precursor mass selector for MS/MS. The ions are collided with argon in the collidion hexapole, and the products are analyzed in the second quad.
This instrument is a very sensitive mass spectrometer, using Multiple Reaction Monitoring mode (MRM).
What do we use this instrument for?
Detection and quantification of residues in traces (pesticides, antibiotics, toxins, peptides,…).
Quantification of proteins by using heavy peptide technique (allergens, biomarkers,…).