Polymer Engineering and Science · 2000 · 123 citations · 11 references
Natural SciencesMaterials EngineeringMaterials ScienceAnalytical ChemistrySpectroscopic AnalysisSpectroscopyEmission SpectroscopyPolymer AnalysisPolymer CharacterizationPolymer RecyclingSpectroscopic AuthenticationSpectroscopic Method ValidationEmission SpectraPlasma Emission SpectroscopyPolyethylene TerephthalatePolymer IdentificationPolyvinyl ChlorideRecycled Plastic MaterialsSpectroscopic CharacterizationSpectroscopic Identification
Abstract The goal of this work was instant identification of post‐consumer plastics by laser induced plasma spectrometry (LIPS). LIP spectra from plastics in a 200–800 nm spectral window were compared with reference spectral libraries stored in a computer. The libraries consisted of representative spectra from different groups of recycled plastic samples. The plasma emission spectra of polyethylene terephthalate (PET), high density polyethylene (HDPE), polyvinyl chloride (PVC), low density polyethylene (LDPE), polypropylene (PP) and polystyrene (PS) were studied. Simple statistical correlation methods including linear and rank correlations were used. The probabilities of correct identification ranged from 0.8 to 1 with values close to unity for most of the polymers studied.
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R. Sattmann, Ingo Mönch, Hans‐Joachim Krause et al. · Applied Spectroscopy · 1998 · 207 citations