论文部分内容阅读
在荧光法测定镁的工作中应用了很多荧光试剂,但灵敏度一般不够高。近年来表面活性剂在荧光分析中的应用得到了很好的效果。本文实验了各类不同表面活性剂对Mg-铁试剂荧光反应的作用。实验结果表明,只有阳离子表面活性剂溴化十六烷基三甲基铵(CTMAB)和氯化十四烷基二甲基苄基铵(Zeph)有明显的增敏作用,且CTMAB的增敏作用更大。本文选用CTMAB为表面活性剂,方法的灵敏度可达2×10~(-3)μg/ml,比相
In the determination of magnesium by fluorescence method used a lot of fluorescence reagents, but the sensitivity is generally not high enough. In recent years, the application of surfactant in fluorescence analysis has been very good. In this paper, the effects of different surfactants on the fluorescence of Mg-Fe reagent were studied. The experimental results show that only the cationic surfactants cetyltrimethylammonium bromide (CTMAB) and tetradecyl dimethyl benzyl ammonium chloride (Zeph) have a significant sensitizing effect, and CTMAB sensitization More effective. In this paper, the selection of CTMAB surfactant, the sensitivity of the method up to 2 × 10 ~ (-3) μg / ml, than the phase