CD's L-PGDS EIA Kit is an immunometric (i.e., sandwich) EIA. The standard curve ranges from 0-100 ng/mL, with a limit of detection of 6 ng/mL. Inter- and intra-assay CV's of less than 15% may be achieved at most concentrations. L-PGDS is present in a variety of body fluids including cerebrospinal fluid, seminal fluid, and plasma. This assay has been validated using cerebrospinal fluid which contains approximately 12-30 _g/ml of L-PGDS.