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前言浮选分离就是溶液中的微量待测物质由于空气浮力而达到分离浓缩的方法,它具有装置简单、能迅速简便地处理大量试样等优点.其原理与浮选矿石相似。自1962年Sebba对各种金属离子的浮选作了详细的探讨以来,这种分离方法已广泛应用。金属离子就象一般没有表面活性的物质一样,与表面活性剂形成的疏水性络合物,如果容易附着在气泡上,就有可能分离。由于这种分离方法随表面活性剂的种类、体系的pH值、待测金属离子在溶液里存在的状态等各种因素而变化,故颇具选择性。它主要用于放射性废液和排水处理,今后应用的范围将更大,最近,在分析化学领域的应用已有
Introduction Flotation separation is the method of separation and concentration of trace substances in solution due to the buoyancy of air, which has the advantages of simple device and quick and easy handling of large numbers of samples, etc. Its principle is similar to flotation ore. Sebba in 1962 for a variety of metal ions flotation was discussed in detail since, this separation method has been widely used. Like the generally non-surface-active substances, metal ions, hydrophobic complexes with surfactants, are likely to separate if they adhere to the bubbles. Since this separation method varies depending on various factors such as the type of surfactant, the pH of the system, the state of the metal ions to be detected in the solution, and the like, it is quite selective. It is mainly used for radioactive waste and drainage treatment, the scope of application will be greater, the recent application in the field of analytical chemistry have