铟-铁试剂-溴化十六烷基三甲基铵荧光光度法的研究及应用

Study on fluorimetric method of indium with ferron and Cetyltrimethylammonium bromide system and its application

本文比较了各类表面活性剂对铟和铁试剂荧光反应的增敏作用,其中溴化十六烷基三甲基铵(CTMAB)效果最好.建立了铟的荧光测定的最佳条件.CTMAB的存在,使反应的灵敏度提高了4倍.用于纯锡和粉煤灰试样中铟含量的测定,结果满意.

The sensitization of various surfactants on fluorimetric reaction of In and ferron have been compared. Cetyltrimethylammonium bromide (CTMAB) is the best one. The optimum condition of fluorimetric determination of In have been established. Sensitivity of reaction is increased by four-fold in the presence of CTMAB. The linear range is 0～20μgIn/25ml. Iidium content in pure tin and coal fly ash has been determined with Satisfactory results