Time Of Flight Mass Spectrometry

Question 1

TOF

Answer 1

(TOF) mass spectrometry is a sophisticated technique used to measure the mass-to-charge ratio (m/z) of ions, providing information about the isotopes and structure of molecules. It is commonly used in A-level chemistry to measure the masses of ions and deduce the composition of substances.

9.1 Principle of TOF Mass Spectrometry

In TOF mass spectrometry, ions are accelerated through an electric field and then allowed to travel down a flight tube. The time it takes for ions to reach the detector depends on their mass-to-charge ratio (m/z). Lighter ions travel faster, while heavier ions take longer to reach the detector.

Question 2

Stage 1 : Ionisation