Hi am trying to develop a method for FcRn and am observing that KD is varying a lot within the same run. 6 sets of the same analyte was run in a single run with the same preparation to check the variability. Have observed the KD varying From 53 nM to 350 nM . Could you please suggest what has to be done?
The numbers say that the replicates are not very well. But as told before, don't rank/judge your experiments on the KD alone!
Please give some more information. ka, kd etc, Sensorgrams, fittings...