分析化学中常使用有机溶剂。特别在显色反应中常用低碳醇如甲醇、乙醇等溶解有机试剂。醇的引入有时给反应速度、灵敏度或反应条件等带来很大影响。这类现象近年来已引起人们的注意。在钪-铬天青S(CAS)-溴化十六烷基吡啶的研究中发现,加入适量乙醇可使反应灵敏度提高近一倍,过量又使络合物褪色。过去的研究亦表明,异配型络合物和增敏型络合物结合可以形成兼具二者优点的四元络 Analytical chemistry often use organic solvents. Especially in the chromogenic reaction commonly used low-carbon alcohol such as methanol, ethanol and other dissolved organic reagents. The introduction of alcohol sometimes has a great influence on the reaction rate, sensitivity or reaction conditions. Such phenomena have drawn people’s attention in recent years. In the study of scandium-chromium azure S (CAS) -bromopyridinium bromide, it was found that adding appropriate amount of ethanol can almost double the reaction sensitivity, which in turn leads to fading of the complex. Past studies have also shown that heterophenotypic complexes and sensitizing complexes can form a quaternionic network that combines the advantages of both