Used for the quantitative determination of heparan sulfate in rat biological samples such as serum, plasma, cell culture supernatants, and tissue homogenates. This ELISA kit is particularly useful in research related to extracellular matrix biology, inflammation, cancer progression, and kidney disease, where heparan sulfate plays a key role in cellular signaling and pathological processes. The assay enables high sensitivity and specificity, allowing researchers to monitor changes in heparan sulfate levels under experimental conditions, assess disease states, or evaluate therapeutic interventions in rodent models.