Design Considerations for a Portable Raman Probe Spectrometer for Field Forensics
Figure 4
Raman Stokes spectrum of ammonium nitrate affixed to a Teflon surface with a thick, synthetic sebum coating (a) and loose ammonium nitrate in a plastic cuvette (b). Few effects of contaminants or container wall were observed with strong Raman scattering materials. These spectra were recorded using the Headwall/Andor demo system with 40 mW of 785 nm excitation and each is the result of one, 1 s exposure.
