Mass Spectrometry
Mass spectrometry separates positive ions according to their mass-to-charge ratio, written as m/z. These pages build from the operation of the mass spectrometer through to isotope abundance, relative atomic mass and interpreting molecular spectra.
Revision Notes
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Spectrometer
The Mass Spectrometer
Revise vaporisation, ionisation, acceleration, deflection, detection and why ions are separated by m/z.
Start revisingCalculations
RAM Calculations
Use isotopic mass and percentage abundance data to calculate relative atomic mass using weighted means.
Start revisingSpectra
Predicting Diatomic Mass Spectra
Predict molecular ion peak patterns for diatomic molecules using isotope combinations and probability ratios.
Start revisingSummary map
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Atoms and Mass Spectrometry Map
Edexcel A Level Chemistry · Topic 1 Atomic Structure · Atoms and Mass Spectrometry
The whole section on one A4 page: sub-atomic particles, isotopes, the mass spectrometer, relative isotopic, atomic and formula masses, and the spectra of molecules.
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Mass Spectrometry – Edexcel A Level Chemistry (9CH0)
The following specification points outline the knowledge and skills students are expected to demonstrate for Topic 1. All points are assessed in Paper 1 (9CH0/01).
Atomic Structure
Mass Spectrometry
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