Analysis of copolymer levels in polymer pellets by near-infrared spectroscopy

contributed by Metrohm | 02/08/2016

This Application Note describes the determination of copolymer levels in polyethylene (PE) and polyvinylacetate (PVA) pellets using NIRS. Without any sample preparation and within less than 30 s, NIRS determines the composition of the polymer blends investigated. By using second derivative spectra and linear least-squares regression, straightforward quantitative analyses are possible.

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