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Suppression of interfering ions in the analysis of plants to determine fluoride using the fluoride ion selective electrode

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dc.contributor.author Brian, Vickery
dc.contributor.author Vickery, M. L.
dc.date.accessioned 2014-08-08T11:28:33Z
dc.date.available 2014-08-08T11:28:33Z
dc.date.issued 197
dc.identifier.citation Analyst Issue 1203, 1976 Vol. 101, pp. 445-454 en_US
dc.identifier.issn 0003-2654
dc.identifier.other 1364-5528
dc.identifier.uri http://ir-library.ku.ac.ke/handle/123456789/10858
dc.description DOI: 10.1039/AN9760100445 en_US
dc.description.abstract Plant ashes may contain sufficient aluminium and/or iron to interfere seriously in the determination of fluoride ions when using the fluoride ion selective electrode. In the presence of these metals the known additions method gave erroneous results, as did that involving the attempted formation of complexes with ethylenediaminetetraacetic acid, disodium salt, or 1,2-cyclohexylenedinitrilotetraacetic acid. Good recoveries of fluoride ion were obtained in the presence of aluminium, iron, magnesium or silicate, using sodium citrate as the complexing agent. The application of the citrate complex method to ashes of commercial tea, high in aluminium and iron, gave recoveries of fluoride ion of greater than 90%. en_US
dc.language.iso en en_US
dc.publisher Royal Society of Chemistry en_US
dc.title Suppression of interfering ions in the analysis of plants to determine fluoride using the fluoride ion selective electrode en_US
dc.type Article en_US


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