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  1. 1 Open Chemistry

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  1. 1 2004

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  1. 1 Kościelna H.

  2. 1 Ren M.

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Voltammetric determination of the trace amounts of bromate in drinking water after pre-concentration on hydrous γ-Al2O3

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Kościelna H., Ren M.
Open Chemistry
|
2004
|
vol. 2
|
issue 3
491-499
EN
A differential pulse voltammetric (DPV) method for the determination of bromate in drinking water, after pre-concentration on γ-Al2O3, is proposed. The reduction peak of bromate has been observed at the potential Ep-−1.6 V in an ammonia buffer as a supporting electrolyte. The method has been successfully applied to determine a bromate concentration of 2.5 μg·l−1 in drinking water (RSD=6.1%, n=7). A sample pre-treatment with a column filled with mixed cation-exchange resin in Ag, Ba and H forms was needed before pre-concentration of bromate on alumina.
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