Used to measure soil ammonium monooxygenase (AMO) enzyme activity, this ELISA kit helps assess microbial nitrification potential in environmental samples. It is widely applied in soil science and environmental monitoring to evaluate nitrogen cycling, particularly in agricultural soils, wastewater systems, and contaminated sites. Researchers use it to study the impact of fertilizers, pollutants, or climate change on ammonia-oxidizing bacteria. The kit enables high-throughput analysis, making it suitable for field studies and lab experiments requiring precise quantification of AMO activity as an indicator of nitrifier function.