Used to measure peroxidase activity in various biological samples, aiding in research on oxidative stress and antioxidant mechanisms. Commonly applied in plant studies to assess stress responses and in medical research to evaluate enzyme activity in tissues or cells. Helps in diagnosing conditions related to oxidative damage and monitoring the effectiveness of antioxidant treatments. Also utilized in food science to analyze the quality and shelf life of products by measuring enzymatic browning and spoilage.