方案摘要
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Concentrations of ammonia and copper can be determined successively by following procedure:Ammonia is titrated first with sulfuric acid solution. On completion of the first tiration, potassium iodide solution is successively added, and rebated iodine is titrated with sodium tiosulfate solution based on redox titration. The obtained result from the second titration indicates the amount of copper contained in the sample.
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