Abstract
The multi-element method to determine trace elements Ag, Co, Fe, Cr and Cu in ZnS-type luminophore materials by X-ray fluorescence spectrometry is presented. Co-precipitation on a carrier has been applied to separate analyte elements from zinc and to minimize absorption effects. The developed method is based on dissolution of the zinc matrix in excess of a concentrated (ca. 12%) solution of NaOH and precipitation of cobalt, iron, chromium, copper and silver on the carrier MnO2 + Mg(OH)2. The precipitate is collected on a membrane filter. The internal standard was used to check the inhomogeneity of the mass per unit area. The determined concentrations in analyzed materials are in good agreement with the value obtained using ICP-AES and AAS.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.