Polarographic Determination of Low Concentrations of Nitrilotriacetate in Lake Water

Abstract

Samples of lake water containing NTA in concentrations from 1 to 10 ppm have been analysed by a polarographic method. The NTA was converted to its 1:1 cadmium complex by adding a 100% excess of cadmium. The method can be used also when sodium tripolyphosphate and sodium alkylbenzenesulphonate are present in the sample.