An interesting study by Arnau Luco Colilles et al at (University of Catalonia) on plastic concentrations in soil showing possibilities of applying Spectral Engines’ NIRONE sensor in soil analysis: “Evaluation of two compact near-infrared spectrometers for the detection of microplastics in soil samples.”
Spectral Engines’ NIRONE S2.0 sensor with wavelength range 1550-1950 nm was used to measure five of the most used plastics worldwide were used: polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), and polyvinyl chloride (PVC) in soil. According to this study the NIRONE S2.0 sensor was capable to differentiate all types of microplastics in soil at concentrations of 1–2 %.
Available online: http://diposit.ub.edu/dspace/handle/2445/138198
Read also our blog on how our NIR technology and products can be used to recycle plastics more effectively.
For further information on the Spectral Engines’ MEMS-based NIR spectral sensors please read more at: