1
Microscopy
Analyze extremely small objects
Gunshot residue particle
GSR particle
Diameter of 5 μm
2
Microscopy
Analyze extremely small objects
Scanning Electron Microscope (SEM)
Uses electron instead of light
3
SEM-EDX
Energy Dispersive X-ray fluorescence (EDX)
SEM-EDX
SEM
EDX
Look at very small objects
Non-destructive analysis
looking at core electrons
Hyphenated technique
4
SEM-EDX