what assay do you want to do ? how do you want to analyse ? there are several ways to do an enzyme assay.
one way to analyse how many units there are in your solution is to do a spectrometric analysis and measure the change in absorbance over time.
For example: ADH uses NADH when we add pyruvate. Thus by measuring the absorbance of NADH over time, we can calculate the concentrationchange over time and thus the amount of mols used per minute.
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