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This article deals with a new method of analysing in seawater, i. e. the uranium is concentrated with an aqueous suspension of basic zinc carbonate, subsequently isolated and determined by extraction-photometric method. In concentrating uranium such factors as stirring time, amount of adsorbent used, acidity of seawater were studied and conditions suitable for analysis were found. This method is simple, accurate and good in reproducibility. It is not necessary to adjust the pH of seawater before analysis. This technique can also be applied to determination of uranium in river or lake.  相似文献   
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江河湖水资源调查,水源污染控制以及海水提铀工作的开展,都促使人们开展对微量铀分析的研究.天然水中微量铀的分析大体上由二步组成,一是从大体积水样中浓集铀,二是浓集物中铀的分离和测定.人们广泛采用的富集方法之一是吸附共沉淀法(作为吸附剂有Al(OH)3[1]、Fe(OH)3[2]、活性炭[3]、AlPO4[4]等)、胶体吸附浮选法以及有机共沉淀法等.  相似文献   
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