Cortisol ELISA Kit provides a rapid, specific, and sensitive assay for cortisol in human plasma or serum. This kit features precoated & ready to use 96-well strip plate for uses over 12-18 months, direct sample (10 ul) analysis, no sample extraction, convenient liquid standards (0-60 ug/dl), two convenient room temperature incubation (60+30 min), time saving ready-to-use substrate solution and other assay components, high sensitivity (0.36 ug/dl) and excellent precesion.