Modern chemical techniques: mass spectrometry

2015-04-30T15:12:00+01:00

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This extract from a book provides an introduction to mass spectrometry, without heavy emphasis on maths or physics. It includes descriptions of instruments and their applications.

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Mass spectrometry
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Use

Specification

England
- A/AS level
- T-level
  - Science
    - B1 Core science concepts
      - Chemical analysis of substances
        B1.42 The principles of the following tests and techniques used to separate substances in order to detect or identify chemical composition:
        mass spectrometry: used to separate substances due to their mass to charge ratio and to identify molecular ions and ion fragments
        mass spectrometry: used to identify the components of an unknown sample due to their molecular weights
  - Healthcare science
    - B1 Core science concepts
      - Chemical analysis of substances
        B1.42 The principles of the following tests and techniques used to separate substances in order to detect or identify chemical composition:
        mass spectrometry: used to separate substances due to their mass to charge ratio and to identify molecular ions and ion fragments
        mass spectrometry: used to identify the components of an unknown sample due to their molecular weights
Scotland
- Advanced Higher
  - SQA Chemistry
    - Organic chemistry and instrumental analysis
      - Spectroscopy
        Mass spectrometry
        Mass spectrometry can be used to determine the accurate molecular mass and structural features of an organic compound.
        Fragmentation takes place producing parent ion and ion fragments.
        A mass spectrum is obtained showing a plot of the relative abundance of the ions detected against the mass-to-charge ratio.
        From a mass spectrum and empirical formula determine a molecular formula.
Wales
- A/AS level
  - WJEC Chemistry
    - Unit 2: ENERGY, RATE AND CHEMISTRY OF CARBON COMPOUNDS
      - 2.8 Instrumental analysis
        (a) use of mass spectra in identification of chemical structure
    - Unit 1: THE LANGUAGE OF CHEMISTRY, STRUCTURE OF MATTER AND SIMPLE REACTIONS
      - 1.3 Chemical calculations
        (b) principles of the mass spectrometer and its use in determining relative atomic mass and relative abundance of isotopes
        (c) simple mass spectra, for example, that of chlorine gas
Republic of Ireland
- Leaving Certificate
  - Chemistry
    - 3. Stoichiometry, formulas and equations
      - 3.3 The Mole
        Social and Applied Aspects
        Mr determination using a mass spectrometer (simple treatment only - interpretation of mass spectra not required).
    - 1. Periodic table and atomic structure
      - 1.2 Atomic Structure
        Social and Applied Aspects
        Use of the mass spectrometer in determining relative atomic mass.
        Fundamental processes that occur in a mass spectrometer: vaporisation of substance, production of positive ions, acceleration, separation, detection (mathematical treatment excluded).
Northern Ireland
- A/AS level
  - CCEA Chemistry
    - Unit A2 2: Analytical, Transition Metals, Electrochemistry and Organic Nirtrogen Chemistry
      - 5.1 Mass spectrometry

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Modern chemical techniques: mass spectrometry

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Mass spectrometry

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