Used in research settings to detect and quantify the AFP-L1 isoform, a variant of alpha-fetoprotein associated with certain liver diseases and hepatocellular carcinoma. The kit enables differentiation of AFP-L1 from other AFP isoforms, supporting studies on liver cancer biomarkers and improving diagnostic accuracy in clinical research. It is not intended for diagnostic use but serves as a tool for investigating tumor markers and evaluating patient samples in laboratory studies.