PLASMA POLYMER COATED THIN FILM OF CHALCOGENIDE GLASS FOR Cu~(+2) SENSORS

摘要

In this paper the possibilities of using the thin chalco-genide glass ion-selective membranes Cu_x Ag_y(As_2S_3)_(100-(x+y)) (15 < x < 20 and 20 < y < 30 at.%), coated with plasma polymer of polyhexamethyldisiloxane (PHMDSO) as sensors for Cu~(+2) ions is presented. It was established that electrochemical performance (reproducibility, response time, selectivity in the presence of foreign ions) and especially lifetime of mi-crosensor coated with plasma polymer film (PHMDSO) was better than that of uncoated chalcogenide glass membrane.