On the long-term stability of calibration standards in different matrices

A Kandić; I Vukanac; M Djurašević; D Novković; B Šešlak; Z Milošević

doi:10.1016/j.apradiso.2012.02.025

On the long-term stability of calibration standards in different matrices

Appl Radiat Isot. 2012 Sep;70(9):1860-2. doi: 10.1016/j.apradiso.2012.02.025. Epub 2012 Mar 3.

Authors

A Kandić¹, I Vukanac, M Djurašević, D Novković, B Šešlak, Z Milošević

Affiliation

¹ Institute of Nuclear Sciences Vinča, University of Belgrade, POB 522, 11000 Belgrade, Serbia. [email protected]

PMID: 22405642
DOI: 10.1016/j.apradiso.2012.02.025

Abstract

In order to assure Quality Control in accordance with ISO/IEC 17025, it was important, from metrological point of view, to examine the long-term stability of calibration standards previously prepared. Comprehensive reconsideration on efficiency curves with respect to the ageing of calibration standards is presented in this paper. The calibration standards were re-used after a period of 5 years and analysis of the results showed discrepancies in efficiency values.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Calibration / standards*
Internationality
Longitudinal Studies
Radiation Dosage
Radioisotopes / analysis*
Radioisotopes / chemistry*
Radiometry / standards*
Reference Standards
Reference Values

Substances

Radioisotopes