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Summary Chapter 17 Mass spec and IR spectroscopy notes

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Detailed notes on chapter 17 from the OCR chemistry textbook, covering mass spec and IR spec

Institution
OCR
Course
Spectroscopy chapter 17 (H432)









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Connected book

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Unknown A-Level Chemistry for OCR A
  • Unknown
  • 9781789086683
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Written for

Study Level
A/AS Level
Examinator
OCR
Subject
Chemistry A
Unit
Spectroscopy chapter 17 (H432)
All documents for this subject (3)

Document information

Summarized whole book?
No
Which chapters are summarized?
17
Uploaded on
July 7, 2024
Number of pages
10
Written in
2023/2024
Type
Summary

Subjects

  • a level chemistry
  • ocr chemistry
  • ocr
  • chemistry
  • spectroscopy
  • mass spectroscopy
  • ir spectroscopy

Content preview

Mass Spectrometry

Mass Spec Calculate Molecular Mass
Sample e
gun tue ion molecularion

molecularmasse spectrometer E detect m le ratio



Process
Stages I Ionisation
x4 Sample vapourised gaseousatoms
e
gun e beam hit atoms
Atoms lose Ix e Unipositive ions

T unstable exist forttime
N By Assume allions unite
formonly ltions
é
gun energy set

2 Acceleration
a e field acceleratetue ions A speeds
Particles must be ionised Charged Accelerate
Dex
3 Deflection sameycharge
Magnetic electricfield deflections me force
Samedeflection force on all pions
Deflection Radius dep mass chargeratio
Assume same charge T'mass t deflection t radius
h mass A deflection t radius

Pathdep I mass 2 Charge MIZ

I Detection
Electrometer photographic detection

Trends Same m z same path
Separationof tions dep on mass

, 1 Ion Source 2 Analyser 3 Detector
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