Used for the rapid and sensitive detection of copper and nickel reductase enzyme activities in soil samples, this ELISA kit enables researchers to assess microbial functional activity related to metal reduction in environmental monitoring. It is particularly useful in bioremediation studies, where understanding the capacity of soil microbes to transform heavy metals is critical. The kit supports quantitative analysis, allowing comparison across different soil types, pollution levels, or treatment conditions. It is widely applied in agricultural, industrial, and ecological research to evaluate soil health and the impact of metal contamination on microbial processes.