Raman spectroscopy is able to analyze dark and intensely pigmented plastic materials, but with black plastics, it can only sense the composition of the samples at lower laser powers with relatively ...

Other research teams have investigated hyperspectral Raman imaging as a means of tracking plastic pollution. This method creates detailed maps of a sample's molecular composition and structure by ...

A Raman system with a 785 or 830 nm laser may ... Image Credit: m-oem Fentanyl citrate powder was inserted in a tiny plastic bag inside a manila envelope and evaluated using the TacticID-1064 ...