Peak shape models curve fitting

For more information on fitting model expressions to peak-shaped experimental curves you might want to consult the review by Fraser Suzuki in ]. A. Blackburn, ed., Spectral Analysis Methods and Techniques, Dekker, 1970, from which some of the above discussion was abstracted. 

The shape of the mass loss and mass loss rate curves determine the types of kinetic models that can be applied to fit the data. Simple kinetic models, which only include one reaction, may be applied to describe the pyrolysis of wheat straw, but cannot describe the two peaks observed in the pyrolysis of washed wheat straw. 

Nevertheless, dip and lAp.swj respectively, increase without limit as the catalytic parameter = kfClig increases. Thus the maximum catalytic effect (at constant c ) is obtained at the longest periods, (lowest frequencies, f ). This condition allows many cycles of the catalytic reaction to occur during each pulse. For large values of Asw the current is controlled purely by the catalytic reaction. Both the forward and the reverse curve adopt the identical sigmoid shape and are separated by the potential shift 2dEs on the potential scale. The dependence of the net peak current Aij/p on the dimensionless parameter is demonstrated in Fig. 39. The oxidation of anthracene, studied by this technique [131] is fitted by a more complex model, namely by the ErevCin-Erev mechanism. 

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