The effect of n anoparti cles and e nzyme immobilization on the performa nce of biosensor Sulfite, b ased on glassy carbon electrode

One of the ways to detect sma ll amounts of Sulfite is to use electrochemical sensors and using nanoparticles can also increase the efficiency and p erformance. When higher selectivity and accura cy is nece ssary we us e biosenso rs to detect desired material. Bio sensors pro create changes such as: Decreasing the time and the cost of a sample, making no n-destructive tests,and de creasing th e health pro duct in chem ical analysis and microbial tests. In the perfor mance of bio sensor that is based on electron transfer, the electrode uses as a Converter.[ ۲] A biosen sor contain s three electrodes: Reference electro de(Ag/AgCl), Workin g electrode which is bas ed on materials like glassy carbon, and Auxiliary electrode. Working e lectrode to make the Su lfite detecto rs are basically based on glassy carbon and their perform ance improves by gold nanoparticles , carbon na notubes and enzyme im mobilization . In this pap er we investigate the effect of nan oparticles p lus enzyme immobilization to improve the performance of the biosen sors.

کلیدواژه ها:

Glass y carbon electrode ، detect Sulfite ، nanoparticles ، enzyme im mobilization