# List of mass spectrometry acronyms

This is a compilation of initialisms and acronyms commonly used in mass spectrometry.
* !–9
* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* References
* External links

## A

* ADI – Ambient desorption ionization
* AE – Appearance energy
* AFADESI – Air flow-assisted desorption electrospray ionization
* AFAI – Air flow-assisted ionization
* AFAPA – Aerosol flowing atmospheric-pressure afterglow
* AGHIS – All-glass heated inlet system
* AIRLAB – Ambient infrared laser ablation
* AMS – Accelerator mass spectrometry
* AMS – Aerosol mass spectrometer
* AMU – Atomic mass unit
* AP – Appearance potential
* AP MALDI – Atmospheric pressure matrix-assisted laser desorption/ionization
* APCI – Atmospheric pressure chemical ionization
* API – Atmospheric pressure ionization
* APPI – Atmospheric pressure photoionization
* ASAP – Atmospheric Sample Analysis Probe
* ASMS – American Society for Mass Spectrometry

## B

* BP – Base peak
* BIRD – Blackbody infrared radiative dissociation

## C

* CRF – Charge remote fragmentation
* CSR – Charge stripping reaction
* CI – Chemical ionization
* CA – Collisional activation
* CAD – Collisionally activated dissociation
* CID – Collision-induced dissociation
* CRM – Consecutive reaction monitoring
* CF-FAB – Continuous flow fast atom bombardment
* CRIMS – Chemical reaction interface mass spectrometry
* CTD – Charge transfer dissociation

## D

* DE – Delayed extraction
* DADI – Direct analysis of daughter ions
* DAPPI – Desorption atmospheric pressure photoionization
* DEP – Direct exposure probe
* DESI – Desorption electrospray ionization
* DIOS – Desorption/ionization on silicon
* DIP – Direct insertion probe
* DART – Direct analysis in real time
* DLI – Direct liquid introduction
* DIA – Data independent acquisition

## E

* EA – Electron affinity
* EAD – Electron-activated dissociation
* ECD – Electron-capture dissociation
* ECI – Electron capture ionization
* EDD – Electron-detachment dissociation
* EI – Electron ionization (or electron impact)
* EJMS – European Journal of Mass Spectrometry
* ESA – Electrostatic energy analyzer
* ES/ESI – Electrospray ionisation
* ETD – Electron-transfer dissociation
* eV – Electronvolt

## F

* FAIMS – High-field asymmetric waveform ion mobility spectrometry
* FAB – Fast atom bombardment
* FIB – Fast ion bombardment
* FD – Field desorption
* FFR – Field-free region
* FI – Field ionization
* FT-ICR MS – Fourier transform ion cyclotron resonance mass spectrometer
* FTMS – Fourier transform mass spectrometer

## G

* GDMS – Glow discharge mass spectrometry

## H

* HDX – Hydrogen/deuterium exchange
* HCD – Higher-energy C-trap dissociation

## I

* ICAT – Isotope-coded affinity tag
* ICP – Inductively coupled plasma
* ICRMS – Ion cyclotron resonance mass spectrometer
* IDMS – Isotope dilution mass spectrometry
* IJMS – International Journal of Mass Spectrometry
* IRMPD – Infrared multiphoton dissociation
* IKES – Ion kinetic energy spectrometry
* IMS – Ion mobility spectrometry
* IMSC – International Mass Spectrometry Conference
* IMSF – International Mass Spectrometry Foundation
* IRMS – Isotope ratio mass spectrometry
* IT – Ion trap
* ITMS – Ion trap mass spectrometry
* ITMS – Ion trap mobility spectrometry
* iTRAQ – Isobaric tag for relative and absolute quantitation

## J

* JASMS – Journal of the American Society for Mass Spectrometry
* JEOL – Japan Electro-Optics Laboratory
* JMS – Journal of Mass Spectrometry

## K

* KER – Kinetic energy release
* KERD – Kinetic energy release distribution

## L

* LCMS – Liquid chromatography–mass spectrometry
* LD – Laser desorption
* LDI – Laser desorption ionization
* LI – Laser ionization
* LMMS – Laser microprobe mass spectrometry
* LIT – Linear ion trap
* LSI – Liquid secondary ionization
* LSII – Laserspray ionization inlet

## M

* MIKES – Mass-analyzed ion kinetic energy spectrometry
* MS – Mass spectrometer
* MS – Mass spectrometry
* MS$^2$ – Mass spectrometry/mass spectrometry, i.e. tandem mass spectrometry
* MS/MS – Mass spectrometry/mass spectrometry, i.e. tandem mass spectrometry
* MALDESI – Matrix-assisted laser desorption electrospray ionization
* MALDI – Matrix-assisted laser desorption/ionization
* MAII – Matrix-assisted inlet ionization
* MAIV – Matrix-assisted ionization vacuum
* MIMS – Membrane introduction mass spectrometry, membrane inlet mass spectrometry, membrane interface mass spectrometry
* MCP – Microchannel plate
* MS$^n$ – Multiple-stage mass spectrometry
* MCP – Microchannel plate
* MPI – Multiphoton ionization
* MRM – Multiple reaction monitoring

## N

* NEMS-MS – Nanoelectromechanical systems mass spectrometry
* NETD – Negative electron-transfer dissociation
* NICI – Negative ion chemical ionization
* NRMS – Neutralization reionization mass spectrometry

## O

* oa-TOF – Orthogonal acceleration time of flight
* OMS – Organic Mass Spectrometry (journal)

## P

* PDI – Plasma desorption/ionization
* PDMS – Plasma desorption mass spectrometry
* PAD – Post-acceleration detector
* PSD – Post-source decay
* PyMS – Pyrolysis mass spectrometry

## Q

* QUISTOR – Quadrupole ion storage trap
* QIT – Quadrupole ion trap
* QMS – Quadrupole mass spectrometer
* QTOF – Quadrupole time of flight

## R

* RCM – Rapid Communications in Mass Spectrometry
* REIMS – Rapid evaporative ionization mass spectrometry
* REMPI – Resonance enhanced multiphoton ionization
* RGA – Residual gas analyzer
* RI – Resonance ionization

## S

* SAII – Solvent-assisted ionization inlet
* SELDI – Surface-enhanced laser desorption/ionization
* SESI – Secondary electrospray ionization
* SHRIMP – Sensitive high-resolution ion microprobe
* SIFT – Selected ion flow tube
* SILAC – Stable isotope labelling by amino acids in cell culture
* SIM – Selected ion monitoring
* SIMS – Secondary ion mass spectrometry
* SIR – Selected ion recording
* SNMS – Secondary neutral mass spectrometry
* SRM – Selected reaction monitoring
* SWIFT – Stored waveform inverse Fourier transform
* SID – Surface-induced dissociation
* SIR – Surface-induced reaction
* SI – Surface ionization
* SORI – Sustained off-resonance irradiation

## T

* TI – Thermal ionization
* TIC – Total ion current
* TICC – Total ion current chromatogram
* TLF – Time-lag focusing
* TMT – Tandem mass tags
* TOF-MS – Time-of-flight mass spectrometer

## V

* VG – Vacuum Generators (company)