COD/TOC ANALYSES USING FERRATE OXIDATION

摘要

Apparatuses for analyzing total carbon and chemical oxygen demand in a sample are disclosed. Also disclosed is a method for analyzing carbon and chemical oxygen demand. Said apparatuses comprise two vials (12, 14) sealed together with a CO2 permeable membrane (16) therebetween and using acids for removing inorganic carbon and ferrate oxidation for determining organic carbon. An inorganic base is used to optimise the ferrate oxidation. Means for introducing the acids, bases and ferrate oxidants are also provided, such as compressible bulbs (44a-44d) attached to the vials (12, 14), levers (70, 70a, b) or rod (52) with detents (60a, b) introducing the reagents into the vials (12, 14).