Uncertainty Evaluation for the Simultaneous Determination of Cu, Fe, Ca and Mn in Coix Seeds by HR-CS-FAAS

doi:10.7506/spkx1002-6630-201612023

Abstract

Abstract:

A mathematical model was established to analyze the uncertainty for the simultaneous determination of copper
(Cu), ferrum (Fe), cadmium (Ca) and manganese (Mn) in coix seeds by high resolution-continuum source-flame atomic
absorption spectrometry (HR-CS-FAAS). In the estimation of uncertainty, the sample weighing, constant volume dilution,
curve fitting, and repeatability that may affect the uncertainty of analytical data were taken into account. The uncertainty
components were used to calculate the combined and expanded uncertainties. The method proposed in this study is concise
and can provide a useful reference for evaluating the uncertainty in the simultaneous determination of several metal elements
in food samples.

Key words: high resolution-continuum source-flame atomic absorption spectrometry (HR-CS-FAAS), coix seed, metal elements, uncertainty

CLC Number:

O657.31

LIANG Yixin, LIU Kangshu, CAI Qiu, WANG Xingning, LI Na. Uncertainty Evaluation for the Simultaneous Determination of Cu, Fe, Ca and Mn in Coix Seeds by HR-CS-FAAS[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201612023.

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Uncertainty Evaluation for the Simultaneous Determination of Cu, Fe, Ca and Mn in Coix Seeds by HR-CS-FAAS

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