Mass analyzer is a technique used for the separation of the ions according to mass/charge ratio.

Equation for the Mass analyzer:

1. Lorentz force law:

F=Q(E+v*B)

Where

F = force applied to the ion

Q = ion charge

E = electric field

v*B = the vector cross product of the ion velocity and the magnetic field

2. Newton's second law of motion:

F=ma

Where

F = force applied to the ion

m = mass of the ion

a = acceleration

By combining the above two equations, we get:

Q(E+v*B) = ma

=> E+v*B = a(m/Q)

where m/Q denotes mass to charge ratio.

Types of mass analyzers:

There are various types of mass analyzers:

1. Scanning Mass Analyzers

2. TOF - Mass Analyzers

3. Trapped Ion Mass Analyzers