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近来,非离子表面活性物质(нПАВ)在分析化学中得到广泛应用,使铬天青 S(CAS)和铝、铍、铁(Ⅲ)、铜(Ⅱ)、钪等离子的显色反应的有效性得到很大的提高。在这里,反应的特征参数——灵敏度和对比度实际上都达到了极限值。所以观察到的现象为基础的反应过程的机理,迄今为止,却始终没有落实下来。为了理解上述各效应的本质,必须详尽地研究在CAS-H_2O-Me;нПАВ-H_2O-Me;CAS-H_2O-нПАВ各体系中的相互作用。假如说在前两种情况下的相互作用已充分地研究过,可以作出明确的结论,那么非离子表面活性剂对水溶液中试剂状态的影响就研
Recently, nonionic surfactants (нПАВ) have been widely used in analytical chemistry to make the chromogenic reaction of chrome azure S (CAS) and aluminum, beryllium, iron (Ⅲ), copper (Ⅱ) Get a big improvement. Here, the characteristic parameters of the reaction - both the sensitivity and the contrast actually reach the limit. Therefore, the observed mechanism of the phenomenon-based reaction process has not been implemented so far. In order to understand the nature of the above effects, it is necessary to study in detail the interactions in CAS-H 2 O-Me; нПАВ-H 2 O-Me; CAS-H 2 O-нПАВ systems. If we say that the interaction in the first two cases has been fully studied and the conclusion can be made clearly, then the influence of nonionic surfactants on the state of reagents in aqueous solution is studied