UV

AAS

ICP

IR

  • Basic concept: colour (absorption of light at specific l)

  • Basic concept:  ATOMISATION ToC dependent, ...........)

  • Basic concept: plasma

  • Basic concept: applied radiation is absorded to vibrate bond between 2 atoms

  • Application:

    • Qualitative and Quantitative (Beer's Law)

    • Organic and inorganic materials.

  • Application:

    • Quantitative (Beer's Law)

    • Inorganic materials/ organometals.

  • Application:

    • Quantitative (Beer's Law)

    • Organo metals and inorganic materials.

  • Application:

    • Quantitative (Beer's Law)

    • Organo metals and inorganic materials.

  • Output, e.g.:

 

 

 

 

(Define x- axis and y-axis)

- qualitative

 

[calibration graph - quantitative]

 

  • Output, e.g.: =UV in checking that the set  l is the optimum

 

 

 

 

 

(Define x- axis and y-axis)

[calibration graph - quantitative]

 

  • Output, e.g.:

 

 

 

 

(Define x- axis and y-axis)

[calibration graph - quantitative]

 

  • Output, e.g.:

 

 

 

 

(Define x- axis and y-axis)

 

  • Important aspects  

    E=hc/l

  • Important aspects  

    E=hc/l

  • Important aspects  

     

  • Important aspects  

    • E=hc/l (trough instead of peaks)

    • E µ1/l , as in wavenumber

    • Di-substituted aromatic signal in the fingerprint region

NMR

MS

XRD

SEM/EDX

  • Basic concept: magnetic resonance of the nucleus of an atom in a molecule

  • Basic concept: fragmentation of molecules to smaller units of ions

  • Basic concept: diffraction of light through crystal lattice (Bragg's Law)

  • Basic concept SEM: imaging  for morphology

  • EDX: excitation of electrons

  • Application:

    • Qualitative

    • Organics

  • Application:

    • Qualitative

    • Organics

  • Application:

    • Quantitative

    • Qualitative: cellulose crystallinity

  • Application:

    • Semi-quantitative

    • Organo-metals and inorganic materials.

  • Output, e.g.:

 

 

 

 

 

 

(Define x- axis and y-axis]

  • Output, e.g.:

 

 

 

(Define x- axis and y-axis)

 

  • Output:

 

 

 

 

 

(Define x- axis and y-axis)

 

  • Output, e.g.:

  • SEM: micrograph; EDX:

 

 

 

 

(Define x- axis and y-axis)

 

  • Important aspects  

  • Interpretation - shielding (substituent is electron donating)

  • deshielding (substituent is electron withdrawing)

  • Identify the low energy and high energy region - why

  • Important aspects  

    fragmentation to a relatively more stable ion

  • Important aspects  

    Derive degree of crystallinity

    Comparison of peak sharpness for amorphous cf. crystalline cellulose

  • Important aspects  

    E=hc/l

NB: These are only relevant to IWK 307. Other extended applications are beyond the scope of the course.