- The degree of deflection depends on the mass/charge ratio, m/z
- The smaller this ratio the larger the deflection
- By varying the magnetic field ratio, ions of different m/z ratios pass through the centre
4. Detection
- The ions reach the detector and generate a small current, which is fed to a computer for analysis.
- The size of the current is proportional to the abundance of the species.
It needs to be under a vacuum otherwise air particles would ionise and register on the detector.
If the sample is not vapourised then vaporizing it would be the first step.
The heavier the ion the less it is deflected.
Comments
No comments have yet been made