Used in research settings to detect and quantify β-naphthol, a metabolite of the insecticide carbaryl and a biomarker for naphthalene exposure. The ELISA kit enables sensitive and specific measurement of β-naphthol levels in biological samples such as urine, blood, or tissue extracts. It is commonly applied in environmental and occupational health studies to assess human exposure to naphthalene and related compounds. The assay is valuable for high-throughput screening due to its simplicity, accuracy, and low sample volume requirements. Not intended for diagnostic use.