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 How to do fitting with derivative function?

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T O P I C    R E V I E W
tjuxjliu Posted - 05/11/2005 : 02:32:28 AM
Origin Version (Select Help-->About Origin): 7.5
Operating System: WinXP

In electron spin resonance spectra, the experiment gives the 1st derivative signal.Using the derivative of the Lorentzian function
,
where the dependence variable is P and the independence variable H,
I want to fit the signal and don't know how to treat.

Firstly I transform the experiment signal into integrated curve, then fit with Lorentzian function, but I always think that the results are dependent with the baseline.

I saw the similar question in Tip of the Week, which is Fitting with Integrals, so I think it can be done with Origin, and I want to know detailed process.

Xinjun

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