Microchemistry
Microchemistry examinations include recovery and analysis of samples taken from clothing and swab kits for cartridge discharge residues, propellant residues and explosives residues.
Examinations and extractions carried out in a state of the art clean room environment with positive air pressure and filtered air.
Propellant and explosives residue analysis by GC/TEA (gas chromatography/thermal energy analysis) with confirmation by HPLC/ECD (high pressure liquid chromatography/electro chemical detection).
SEM (scanning electron microscope) analysis for cartridge discharge residues.
The Scanning Electron Microscope
The section also carries out SEM analysis in other areas.
- Elemental analysis of paint and glass.
- Identification of unknown materials such as small fragments from explosions and fires.
- Visual examination of light bulb filaments for nature of breakage.
- Low vacuum non destructive visual and elemental examination of wet, dirty and/or large items such as paper and textiles.
Sampling kits, for the recovery of cartridge discharge residues and explosives residues, for use on suspects, premises or vehicles are manufactured and supplied.
