Quantification of C, H, N and O in polymers using WDXRF scattering spectra and PLS regression depending on the spectral resolution

Abstract

A new approach to determine the elements carbon, hydrogen, nitrogen and oxygen (CHNO) in polymers by wavelength dispersive X-ray fluorescence analysis (WDXRF) in combination with partial least squares (PLS) regression...

Atomic spectrometry update: review of advances in X-ray fluorescence spectrometry and its special applications

“…When the model was applied to undiluted milk samples, it was possible to differentiate between raw and treated products and between samples with low and high fat contents. Even more information from the scattering region of the primary beam was extracted by Breuckmann et al 57 when they applied a multivariate fitting approach. The C, H, N and O concentrations in polymers were determined using the scatter spectra acquired by WDXRF spectrometry and PLS regression.…”

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…An interesting application was presented by Breuckmann et al who determined C, H, N and O in plastics using the WDXRF Rayleigh and Compton scattering spectra from a rhodium source and partial least squares regression. 119 The method was applied to 84 polymer samples, some of which were thermoplastics and others thermoset plastics ( e.g. polyurethane, epoxy resins and polyester resins).…”