Mass Spectrometry Mass Spectrometry is a technique used to - PowerPoint PPT Presentation

Mass Spectrometry Mass Spectrometry is a technique used to determine the molecular weight and molecular formula of an organic compound. 1

Mass Spectrum of Methane H H H e - fragmentation + H H C H H C H H C H H H m/z 16 m/z 15 100 Relative Abundance 0 15 16 17 20 m/z 2

Nitrogen Rule Odd M + = odd number of nitrogen Even M + = no nitrogen or an even number of nitrogen 3

Detecting a Br 4

Detecting a Cl 5