Provided are a method, upon radical copolymerization of a vinyl-containing porphyrin compound and a radically polymerizable monomer, thereby obtaining a porphyrin-nucleus introduced polymer, of controlling reactivity of the porphyrin-nucleus introduced polymer with a metal by selecting the radically polymerizable monomer; and a method for measuring a trace metal by measuring a change in absorbance caused by complex forming reaction between a porphyrin-nucleus introduced polymer, which has been obtained by radical copolymerization of a vinyl-containing porphyrin compound and a radically polymerizable monomer, and a heavy metal ion, said radically polymerizable monomer being selected so as to heighten reaction selectivity of the porphyrin-nucleus introduced polymer to a metal to be measured.
The present invention, by selecting the radically polymerizable monomer as a raw material for the porphyrin-neucleus introduced polymer as a measuring reagent, makes it possible to change the water-solubility or the reactivity of the measuring reagent with the metal in complex formation so that the target metal can be measured highly sensitively and easily.
提供了一种方法,在含
乙烯基的
卟啉化合物和可辐射聚合的单体进行自由基共聚,从而获得
卟啉核引入聚合物时,通过选择可辐射聚合的单体来控制
卟啉核引入聚合物与
金属的反应性;以及一种测量痕量
金属的方法,该方法通过测量由含
乙烯基的
卟啉化合物和可辐射聚合单体自由基共聚得到的
卟啉核导入聚合物与重
金属离子之间的络合物形成反应引起的吸光度变化,所述可辐射聚合单体的选择是为了提高
卟啉核导入聚合物对待测
金属的反应选择性。
本发明通过选择可辐射聚合的单体作为
卟啉-核引入聚合物作为测量试剂的原料,可以改变测量试剂的
水溶性或与
金属形成络合物的反应性,从而可以高灵敏度、简便地测量目标
金属。