Dispense 150ul Color Reaction Mixture into each
well (Or apply 50ul TMB solution and 100ul Substrate
Solution to each well. Mix well by vortexing or
shaking slightly).
After sufficient color development (5-10minutes
at room temperature or at 37℃), add 50ul Stop
Solution (2M H2SO4) to each well.
Read plates in a microwell plate reader at
wavelength setting of 450nm.