氰化钾标准储备液的改进实验研究

摘要

Use Spectrophotometry to determine the cyanide in water, joins ration of zinc chloride when preparing potassium cyanidernstandard reserving solution. After one year of experimental study,The result indicates the method can effectively resolve the problemrnthat potassium cyanide standard reserving solution can not be preserved for long-term. At the same time, through recovery ratesrnexperiment of standard substance and the examination for national standards sample, It does not affect the result of determination.%用分光光度法测定水中氰化物,在配制氰化钾标准储备液时,加入一定量的氯化锌,经过一年时间的试验研究,结果表明该方法可以有效解决氰化钾标准储备液不宜长期保存的问题,同时经加标回收实验和国家标准样品检验,不影响测定结果.