Such configurations combine the strength of MS/MS for identification confirmation with the sensitivity of quadrupole mass analyzers.
What does QMA stand for?
QMA stands for Quadrupole Mass Analyzer (physics)
This definition appears very rarely and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of QMA
We have 53 other meanings of QMA in our Acronym Attic
- Quotation Mark
- Qualification Model/Flight Model
- Quantum Mechanical and Molecular Mechanical
- Quartermaster First Class (naval rating)
- Quartermaster Second Class (naval rating)
- Queen Mary 2 (cruise ship)
- Quartermaster Third Class (Naval Rating)
- Quail Muscle Myoblast Cell
- Qatar Monetary Agency
- Qatar Museums Authority
- Qualified Medications Aide
- Qualified Military Applicants
- Qualitative Materiel Approach
- Quality Management Approach (various organizations)
- Quality Management Assessment
- Quality Manufacturing Associates (Florida)
- Quantitative Methods A (various schools)
- Quantitative Muscle Assessment (diagnostic tool)
- Quantum Merlin Arthur
- Quarter Midget Association
Samples in periodicals archive:
De Heer built a new cluster source and a quadrupole mass analyzer with a range from 1-10,000 amu; clusters were ionized using a broadband UV arc lamp - all features that later proved to be essential for the discovery of electronic shell structure.
Ion trap and quadrupole mass analyzers encompass >90% of the LC-MS market, and as such, more description and discussion of them and less about magnetic sector instruments may have been helpful.
The precursor ions then react with the sample in the flow tube, which in turn is fed into the secondary quadrupole mass analyzer.
Every feature of the Varian 1200L MS -- from the quadrupole mass analyzers to the off-axis multiplier to the interface that introduces samples from the LC to the MS -- have been designed for maximizing ion transmission while minimizing background chemical noise.
Quadrupole mass analyzers are now the most widely used in the laboratory.
One vendor that is on the verge of entering the portable GC/MS market is Microsaic, which has developed a quadrupole mass analyzer on a chip that can be easily configured as a suitcase-sized GC/MS; it has been shown in such a configuration in the company's ChemPack instrument.
Most SIMS instruments use quadrupole mass analyzers, but there is also a market for time-off-light instruments (TOF-SIMS).