Uncertainty analysis of determination of fluoride and bromide in tea by ion chromatography[J]. Science and Technology of Food Industry, 2012, (17): 322-324. DOI: 10.13386/j.issn1002-0306.2012.17.015
Citation: Uncertainty analysis of determination of fluoride and bromide in tea by ion chromatography[J]. Science and Technology of Food Industry, 2012, (17): 322-324. DOI: 10.13386/j.issn1002-0306.2012.17.015

Uncertainty analysis of determination of fluoride and bromide in tea by ion chromatography

  • The uncertainty of fluoride and bromide in tea determined by ion chromatography was assessed.By analyzing calculation formula with uncertainty theories, the sources of uncertainty of determination were traced and quantitated.Related expanded uncertainty of fluoride and bromide in tea were 4.104% and 3.872% respectively.As the results showed, among 6 factors of uncertainty, the main factors coming from contents of targeted ions from linear fitting, standard solutions preparation and repeatedly determination influenced the results mostly.Through reducing the amounts of these factors, the quality of the determination results could be increased.
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