Used to measure phenylalanine ammonia-lyase (PAL) enzyme activity in rat tissue samples, this ELISA kit is widely applied in biochemical and medical research. It helps assess PAL levels in studies related to amino acid metabolism, liver function, and metabolic disorders. Researchers use it in drug development and toxicity testing to evaluate how compounds affect phenylalanine pathways. The kit enables high-throughput analysis with high sensitivity and specificity, making it valuable in both academic and pharmaceutical laboratories.