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

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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


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SLIDE 1

Mass Spectrometry

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

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SLIDE 2

Mass Spectrum of Methane

Relative Abundance m/z

100 20 17 16 15

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H C H H H e- H C H H H fragmentation m/z 16 H C H H + H m/z 15

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SLIDE 3

Nitrogen Rule

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

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SLIDE 4

Detecting a Br

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SLIDE 5

Detecting a Cl

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