I think I have a simple problem, but I can't solve it. I have taken the following values of an experiment: Time / conversion 10 / 19% 20 / 13% 30 / 14,1% 60 / 14,8% 90 / 15,6% 120 / 16,5%
Now I want to fit these values except the first value with this model-function: y = A*(1-exp(-B*x)) What shall I do? I've already typed in this new function, but origin does not calculate any parameters.
Origin already has the BoxLucas1 model so you don't need to define it or initialize parameter values (required if you do define it), so get rid of the % signs plot rows 2 to 6 and you should be good to go.
Fitting first order reaction
Posted - 11/17/2010 : 08:50:25 AM
