NaLS微乳的制备及PAR分光光度法微量Ni(Ⅱ)迁移的研究

Preparations of NaLS Microemulsion and Transport of Trace NiIons with Microemulsion and PAR Spectrohotometric Determination

研究了以十二烷基磺酸钠(NaLS)为表面活性剂与不同油性溶剂及不同助表面活性剂制成的微乳状液在4-(2-吡啶偶氮)—间苯二酚(PAR)体系中用分光光度法测定痕量镍离子Ni(Ⅱ)从水相或料相到微乳的迁移情况,并以试剂空白为参比,得出了以NaLS为表面活性剂,正庚烷为油性溶剂、正丁醇为助表面活性剂的适宜于痕量镍离子迁移的最佳微乳组成和最佳迁移条件,结果令人满意。

Microemulsions of Water- phobic solvents and other cosurfactants. The in- oil（w/o）were prepared by mixing the surfactant NaLS with different transporting behaviors of meal ions such as Ni（Ⅱ）from the water or feed hyarophases into the microemulsion phases in PAR Systems were studied using spectrophotometric techniques. By comparing with the blank reagents, optimum conditions for preparing microemulsions and metalion tranxport were obtained. The experimental results showed that the metalions had hig transport ration in these microemulsion systems made of NaLS as the surfactant, 1 - heptane as the hyarophobic solvent and 1 - butanol as the cosurfactant. Satisfactory determinations of the target ions were carried out.