DEVICE FOR CHLORIDE ION REMOVAL PRIOR TO CHEMICAL OXYGEN DEMAND ANALYSIS

摘要

A test cartridge (10) for use in sample treatment having an inner cartridge (14) and an outer cartridge (12). The outer cartridge (12) contains a solid reagent (28) through which a test sample is moved. The inner cartridge (14) contains a removable filter (30). The outer cartridge matingly fits within the rim of a collection vessel (40).