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Optimization of the response due to inhibition by bromide on the methyl orange-bromate reaction system

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dc.contributor.advisor Hasty RA, Prof en
dc.contributor.author Motalane MP en
dc.date.accessioned 2016-09-22T11:54:16Z
dc.date.available 2016-09-22T11:54:16Z
dc.date.submitted 1992 en
dc.identifier.uri http://hdl.handle.net/20.500.11892/141672
dc.description.abstract A kinetic method for the determination of halides based on their Landolt-type behavior on the methyl orange - bromate reaction system is presented. Continuous flow analysis technique is used for a detailed studies of the effect of the reaction parameters, in order to gain a better understanding of the reaction so that the method may be optimized.<br><br> The sensitivity of the reaction with respect to bromide concentration depends on the extent of background reaction. Under optimized conditions, the minimum detectable bromide concentration is 1.2x10<sup>-9</sup> mol/L in the reaction mixture. Under these conditions, 8.2x10<sup>-7</sup> mol/L chloride i.e. 28 microgram/L is detected. The percent relative standard deviation . for 6.04x10<sup>-9</sup> mol/L bromide in reaction mixture is 1.9%.<br><br> The effect of foreign ions commonly found with the halides is investigated. Cations like Zn<sup>2+</sup> and Mg<sup>2+</sup> and anions like PO<sub>4</sub><sup>3-</sup> and NO<sub>3</sub><sup>-</sup> do not interfere at concentrations up to 1000 times that of the halide. en
dc.language English en
dc.subject Chemistry en
dc.title Optimization of the response due to inhibition by bromide on the methyl orange-bromate reaction system en
dc.type Masters degree en
dc.description.degree MSc en


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