ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ Mass Spectrometer
Definition:
The mass spectrometer is an instrument which can measure the masses and
relative concentrations of atoms and molecules. It makes use of the basic
magnetic force on a moving charged particle.
Source & ©: HyperPhysics Mass
Spectrometer 
ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ | 
