Used in research settings to quantitatively measure glutamate ammonia ligase (GLUL) levels in human biological samples such as serum, plasma, or tissue homogenates. This ELISA kit enables detection of GLUL protein concentrations with high specificity and sensitivity, supporting studies related to nitrogen metabolism, neurological disorders, liver function, and cancer research. It is particularly valuable in investigating diseases where glutamine synthetase activity is altered, including hepatic encephalopathy, glioblastoma, and neurodegenerative conditions. The assay is designed for in vitro research use only and is not intended for diagnostic procedures.