Quality control of tritium analysis in aquatic samples by enrichment process using liquid scintillation counter

This report explain the big role of the Intercomparison programme, in Quality Control of Tritium Analysis. It makes sure that Results are Traceability to the SI System International for the Analysis and Measurements. This procedure is very necessary to valid the Analytical Method, and for the competence of testing and calibration laboratory. The laboratory should applies the general requirements of international standard ISO/17025: 1999 in the analytical laboratory. The study shows the control charts for all participant exercises results in order to monitor the statistical control of the analytical system. sample preparation, data manipulation and programme management were described in the report. Although; Tritium measurement technique is not relatively simple, the quality control mechanisms should be applied to this analytical technique to ensure data reliability. This study shows the procedure which used to measure the participating analytical performance. (author)