Used in biomedical research to quantify CHI3L1 protein levels in biological samples such as serum, plasma, and tissue homogenates. Helps in studying inflammatory diseases, cancer progression, and autoimmune disorders where CHI3L1 is overexpressed. Commonly applied in clinical labs and research settings to assess disease markers, monitor therapeutic responses, and support biomarker validation. Provides a reliable, sensitive, and high-throughput method for protein detection without requiring complex instrumentation.