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자료유형
학술저널
저자정보
저널정보
한국환경분석학회 환경분석과 독성보건 한국환경분석학회지 제21권 제1호
발행연도
2018.1
수록면
34 - 40 (7page)

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In this study, the analytical techniques of 51 domestic and international institutions were assessed based on the proficiency testing of heavy metals. The proficiency testing samples that were prepared and distributed for this study were barium and chromium, of which their homogeneity and stability in water were ensured. Thirtyeight institutions and 45 institutions participated and submitted their results obtained from the analysis of barium and chromium, respectively. A statistical assessment on the proficiency test was conducted on the basis of the z-score and the results obtained are as follows: for barium, 1 institution was assessed as unsatisfactory and 6 as doubtful, and for chromium, 6 were assessed as unsatisfactory and 4 as doubtful. The testing institutions that had doubtful or unsatisfactory results need to consider the cause of causal analysis inaccuracies, including reference materials, glassware, inspection of the testing equipment and recalibration, test procedure reviews, tester training, and continuous participation in proficiency tests of relevant areas in order to promote efforts for improving and taking preventive measures for performance improvement.

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