Metrolab Blog

Raw Materials Identification through Multiple Polyethylene Bags

Raman technology is known for its fast speed and convenience for material identification and verification. Raman measurements can be conducted through transparent containers without any sample preparation.
This technical note showcases the NanoRam handheld Raman spectrometer for raw material identification through multiple polyethylene (PE) bags. The PE bags used in the test was a Whirl-Pak 4oz bag, with the thickness of 2.25 mil (~0.06mm).
A pharmaceutical active ingredient (API) in powder form from three different lots was used for testing. Tests were completed through a single layer bag, 5 PE bags, and 9 PE bags.

Download Application Note