Two-dimensional mass spectrometry moves from elite centres to the ordinary bench
A team from the University of Warwick and Verdel Instruments has run 2DMS on a commercially available Q-TOF. Until now the technique needed an instrument costing millions — an upgrade kit is enough.
- In 2DMS every ion gets its own frequency label, which stays with its fragments. The fragment spectrum can be assigned to its parent ion without chromatographic separation.
- For mixtures with similar mass-to-charge ratios the authors report up to ten times more useful spectral information than in the classical approach.
- Until now the method ran on ion cyclotron resonance instruments; a quadrupole time-of-flight analyser with an upgrade kit is now enough — the authors call it Q-2DMS.
- The practical ground is identifying unknowns: metabolites, environmental contaminants including PFAS, and controlled-substance work.
- Shortening the chromatographic separation shortens the time per sample — in a routine laboratory that often counts for more than sensitivity itself.
- The paper appeared in July 2026 in Analytical Chemistry. It is a proof of feasibility, not a standardised method — the road to an accreditation scope is still long.
Source: Phys.org