Comparison of Uncertainty Evaluation for the Determination of Mercury Content in <i>Dictyophora</i> by Automatic Mercury Analyzer and Atomic Fluorescence Spectrometer

LIU Kangshu; LUO Tianlin; LIANG Yixin

doi:10.13386/j.issn1002-0306.2021010064

Volume 42 Issue 20

Oct. 2021

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Science and Technology of Food Industry > 2021 > 42(20): 242-247. > DOI: 10.13386/j.issn1002-0306.2021010064

LIU Kangshu, LUO Tianlin, LIANG Yixin. Comparison of Uncertainty Evaluation for the Determination of Mercury Content in Dictyophora by Automatic Mercury Analyzer and Atomic Fluorescence Spectrometer[J]. Science and Technology of Food Industry, 2021, 42(20): 242−247. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021010064.

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Comparison of Uncertainty Evaluation for the Determination of Mercury Content in Dictyophora by Automatic Mercury Analyzer and Atomic Fluorescence Spectrometer

Guiyang Customs, Guiyang 550081, China

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Received Date: January 12, 2021
Available Online: August 15, 2021

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Abstract

Abstract

The content of mercury in Dictyophora was determined by automatic mercury analyzer and atomic fluorescence spectrometer. The main sources of uncertainty were analyzed and the main uncertainty components were calculated by establishing mathematical model, and the synthetic uncertainty and extended uncertainty were obtained, and the uncertainties results were compared. Results showed that, the expanded uncertainties of these two methods were 0.006 and 0.002 mg/kg(k=2), when the determination results of mercury were 0.050 mg/kg.This study might provide a guideline for uncertainty evaluation for determining mercury in edible fungus by automatic mercury analyzer and atomic fluorescence spectrometry.
- automatic mercury analyzer,
- atomic fluorescence spectrometer,
- Dictyophora,
- mercury,
- uncertainty

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