METHOD OF DETERMINING ZINC IN DRINKING WATER

摘要

FIELD: environmental monitoring. SUBSTANCE: method is applicable when controlling level of harmful substances arising from environmental pollution and consists in determining zinc ions in drinking water utilizing accessible and inexpensive horse-radish peroxidase. Method involves photometric measurement of the rate of reaction of peroxidase oxidation of o- dianizidine with hydrogen peroxide in presence of zinc ions. Method allows determining up to 10^-14 M metal ions. EFFECT: increased sensitivity and selectivity and simplified procedure. 1 dwg, 1 tbl