A.L.Kukla, Yu.M.Shirshov,
I.A.Koshets
Basing on the ferment activity analysis of acetylcholine esterase,
butyrylcholine esterase, glucose oxidaze, urease, we have performed investigations
on determination of heavy metal ions and phosphororganic pesticides in
water solutions. Since the above enzymes have different sensitivities
to pesticides and metals, a method of their detection and content determination
in solutions has been suggested. The pollution content was determined by
estimation of residual activity
of ferment membranes after injection of analysed samples. We have used
electrolyte-insulator-semiconductor sensors with silicon nitride ion-sensitive
layers as transducers.