| 초록 |
There is no doubt that it is very important to rapidly detect heavy metal ions. Conducting polymers such as polypyrrole, polyaniline and polythiophene hold strong potential as versatile material candidates for diverse future technologies. Cellulose, a natural polymeric material, has widespread technical applications due to its structural rigidity and high surface area. Here, we describe the electrochemical detection of metal ions using polypyrrole/cellulose paper membranes in flow systems. A home-made, real-time sensing device with a counter electrode and a reference electrode was fabricated to measure real-time sensor responses in flow systems. Importantly, principal components analysis technique was employed to screen the unique response profile of the membranes toward Hg(II) ions from many response signals, even in a real sample, groundwater. With the urgent demand for the development of inexpensive, flexible, light-weight, and environmentally friendly devices, the fascinating characteristics of these PPCL papers are likely to provide possibility of fabricating a cheap and efficient mercury sensor. |
