The hydrogen peroxide-oxidation of o-phenylenediamine (OPD) catalyzed by horseradish peroxidase (HRP) at 37 Â°C in 50 mM phosphate buffer (pH 7.0) was studied by calorimetry.
The Spartan Beast is 10+ miles. The Super Spartan is 8-10 miles and the Spartan Sprint is 5k. The distances are estimate because no two courses are the same. The race I completed was the Super Spartan. The course was at Vail Lake Resort in Temecula, CA. Upon registering for the run you select start times.
Surefire rates the Titan Plus at 300 lumens for 45 minutes. The Titan runtime on high (125 lumens) is 1 hour, at 15 lumens it is 8 hours using the NiMH battery. A lithium AAA-cell will get you 2 hours and 10 hours, respectively. Thatâs all we could get on runtime from Surefire by press time.