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- E-ISSN 2288-8985
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Uncertainty evaluation of dioxin analysis in blood samples
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2003, v.16 no.6, pp.475-482
(Inorganic Analytical Chemistry Grop, Kprea Research Institute of Standards and Science)
&
(2003). Uncertainty evaluation of dioxin analysis in blood samples. Analytical Science and Technology, 16(6), 475-482.
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Abstract
Uncertainty of final measurement results considering main uncertainty sources being in dioxin analysis of a blood sample was estimated. 'The Guide to the Expression of Uncertainty in Measurement' was suggested for accomplishment of this study. After uncertainties for the 11 compounds detected in this experiment of the 17 target compounds of dioxin and furan were calculated considering the uncertainty sources of each step, uncertainty for the total dioxin concentration was estimated by combining these values. The concentration of dioxin in blood sample was expressed as <TEX>$0.0746{\pm}0.0074pg$</TEX> I-TEQ/g weight or <TEX>$20.68{\pm}2.04pg$</TEX> I-TEQ/g lipid, including the uncertainty values obtained in this way. The former expression indicates the conversion concentration into the sample weight and the latter one indicates the conversion concentration into the lipid weight. The quality of measured analytical results could be assured quantitatively by estimating uncertainty of measurement results and showing the range of measurand.
- keywords
- uncertainty, dioxin, blood
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