Q-Bright Endure Chemiluminescent Detection Kit - Q-Bright® Endure (62-0200-0700) chemiluminescent detection reagent is a luminol-based substrate for horseradish peroxidase (HRP), providing a light output for up to 24h. Q-Bright® Endure provides much greater sensitivity compared to the classical ECL reagents and is superior to many of the available commercial reagents providing long-lasting, high to mid-femtogram levels of detection in western blot, ELISA and other chemiluminescent-based applications.