Relative atomic mass mass spectrometry

Definition of relative atomic mass

Relative atomic mass is the mass compared to one twelfth of a carbon 12 isotope

Definition of relative isotopic mass

Mass of an atom of an isotope compared with one twelfth of the mass of an atom of carbon 12

What does overall mass depend on

Percentage abundance

Relative mass

Molecular mass definition

Sum of the relative atomic masses of all the atoms in its molecular

Mass spectrometry can be used for

To identify unknown compounds

Determine abundance of each isotope in elements

To gain information about structure and chemical properties

How does mass spectrometry work

Mass to charge ratio of ions

Mass spectrometry ionisation

Molecules are converted into positive ions by shooting negative beams of electrons to knock out an electron

Acceleration

Ions are accelerated by using negative ion to create repulsion

This is to have the same kinetic energy