| Zugriffsnummer | 44137 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Summary of ISO standard 20289: Total reflection X‐ray fluorescence analysis of water |
| Autor(in); Institution |
Borgese, Laura; INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, ITALY
Bilo, Fabjola; INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, ITALY
Federici, Stefania; INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, ITALY
Margui, Eva; Department of Chemistry, University of Girona, Girona, SPAIN
Hase, Thomas; Department of Physics, University of Warwick, Coventry, UNITED KINGDOM
Huang, Yuying; Shanghai Synchrotron Radiation Facility, Shanghai Advanced Reserach Institute, Chines Academy of Sciences, Shanghai, CHINA
Beckhoff, Burkhard; 7.2, Röntgenmesstechnik mit Synchrotronstrahlung, PTB-Berlin
Depero, Laura E.; INSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, ITALY
|
| Quelle/Jahr | Surface and Interface Analysis: 52 (2019), 119 - 123 |
| ISSN | 0142-2421 (PRINT) ; 1096-9918 (ONLINE) |
| DOI | |
| Verlag | Chichester [u.a.]: Wiley |
| Freie Schlagworte | accuracy ; experimental calibration ; ISO ; precision ; TXRF ; water |
| Zusammenfassung | The International Standard Organization (ISO) 20289 provides a method for determining the elemental concentration of impurities dissolved in water samples. It exploits total reflection X‐ray fluorescence (TXRF) spectroscopy to measure a dried residue on an X‐ray reflector. The scope is to provide a chemical metrology for quantitative analysis to obtain traceable results within a defined degree of accuracy and precision according to good practice and in compliance with ISO 17025. Target users include technicians working in laboratories who perform routine analysis of large numbers of samples. The method is specifically focused on determining elements dissolved in drinking, surface and ground water, but it can be also extended to waste waters and eluates if dilution steps are considered. The standard includes the description of all reagents, standards, and materials, including suitable reference materials, which are needed to prepare the sample and ensure quality assurance and control protocols. In addition, the standard presents a detailed description of sample preparation, contributions factors affecting the uncertainty budget, the general procedure to check instrumental calibration, determining limits of detection and quantification, and methods for spectra fitting. |
| Themenbereich der Metrologie | Photometrie und Radiometrie |
Zitierung
Borgese, L., Bilo, F., Federici, S., Margui, E., Hase, T., Huang, Y., Beckhoff, B., & Depero, L. E. (2019). Summary of ISO standard 20289: Total reflection X‐ray fluorescence analysis of water. Surface and Interface Analysis, 52, 119–123. https://onlinelibrary.wiley.com/doi/abs/10.1002/sia.6720