| 초록 |
There are diverse metal ions in waste water out-gushing from many industries. The metal ions remained in waste water are absorbed into bodies of many creatures and finally enter human body which can be potential toxin from nature. Many researchers have developed several methods detecting metal ions and among the various methods detecting ions, methods using specific chromic dyes have advantage in simplicity. Here we selected 4-(2-Pyridylazo)resorcinol (PAR) dye which changes color when combining to certain metal ion. We prepared hydrogel containing various amount of PAR dye. Herein, to immobilize PAR dye at inside of hydrogel, first, –OH group of PAR is modified to double bond via esterification reaction. Modified PAR dye and acryl amide are crosslinked to prepare PAR functionalized hydrogel. Here, porous hydrogel shows faster detecting time than that of bulk. Metal Ion Sensing Kit (MISK) was made by processing PAR functionalized hydrogel and could detect metal ion such as Co2+, Cu2+. |
