Ammonia Analyzer For measurements on municipal water, river water, boiler feedwater or for industrial effluents ABB offers an ammonia analyzer that will suit your application. Ammonia analyzer 8232 uses a specific ion electrode to determine the ammonia concentration. Accurate and reliable online measurement of ammonia up to 1000 ppm concentrations. The Aztec 600 ammonia analyzer uses a colorimetric determination to measure the ammonia concentration. Accurate and reliable online measurement for low ammonia concentrations up to 3 ppm.