Lowest conc. of acarbose has highest % inhibition, what could be the cause of this error?

My positive control (conc: 4, 8, 12, 16, and 20 ug/mL); acarbose had an unexpected result, my least concentration for acarbose is 4 ug/mL and it actually showed the highest %inhibition for alpha...

08 May 2019 3,032 7 View