Used in biomedical research to quantify levels of plasma kallikrein in mouse blood samples. Helps in studying inflammatory processes, coagulation pathways, and kinin-kallikrein system activity. Commonly applied in preclinical studies related to cardiovascular diseases, sepsis, and hereditary angioedema. Enables researchers to assess target engagement and efficacy of kallikrein-inhibiting drugs in mouse models. Provides high sensitivity and specificity for detecting changes in kallikrein concentration due to experimental treatments.