Used in research settings to quantitatively measure levels of human ferritin light chain in biological samples such as serum, plasma, or cell lysates. This assay helps assess iron storage and metabolism in studies related to iron deficiency, iron overload disorders like hemochromatosis, and inflammatory conditions where ferritin acts as an acute phase reactant. It is also utilized in cancer research, as elevated ferritin levels are sometimes associated with tumor progression. The kit enables high-throughput analysis with high sensitivity and specificity, supporting investigations in immunology, hematology, and metabolic disease research.