Abstract
소각재를 이용한 다이옥신의 매체특성이 반영된 표준물질 제조 기법을 정립하고, 균질성 및 안정성이 확보된 숙련도 평가용 시료로서의 적용 가능성을 평가하였다. 국내 환경분석에 적합한 폐기물 분석용 다이옥신 표준물질을 제조하여 10회 이상 반복 측정한 결과, Dioxin 17개 이성체별 농도의 상대표준편차는 2.6~15.7%로 나타냈다. 측정결과를 일원분산분석(one-way ANOVA)을 이용하여 균질도를 평가하였다. 측정과정과 균질도를 이용하여 불확도를 평가한 결과, 다이옥신의 확장불확도 값은 0.114~7.091로 산정되었다. This study was performed to validate reference materials (RMs) for proficiency testing (PT) in waste inter-laboratories. Dioxin RMs were prepared from fly ash in industrial incinerators. The relative standard deviations (RSDs) of analytical results were 2.6~15.7% for the dioxin RMs in 10 replicates (between and withinbottles). Data were collected and statistical analysis was performed by the One-way ANOVA test. The combined uncertainties of target isomers in dioxin analysis were 0.114~7.091.
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