Beitrag zur Yttriumbestimmung in Stahl und Chrom/Nickel-Legierungen mit Wellendispersiver Röntgenfluorescenz — Abtrennung der Matrix

Ferrous analysis

“…Excitation, detection, and surface finish parameters were evaluated in a recent paper describing the use of wavelength-dispersive XRF spectrometry for the determination of Ce and La in nodular cast iron (11). Two other studies of this analytical technique recommend the use of ion-exchange separation of the rare earths yttrium (77) and Ce, La, Nd, and Pr (211) from steels prior to direct excitation of the ion-exchange resin to finish the analysis, while for Cr/Ni alloys, a liquid-liquid extraction is preferred (77) for the separation.…”