Parameter estimation of overlapping (near-)symmetrical absorption bands with reference to quantitative determination may advantageously be performed by a new procedure that involves fitting a generalized four-parameter band shape function to the Fourier-domain representation of the
second-derivative spectrum. Important features of the method are: insensitivity to linear and weakly curved baselines, inherent noise reduction, fast calculation of objective function, and band simulation capability much better than that with the Gauss or Lorentz shapes.
Institute of Biological Chemistry A, University of Copenhagen, Universitetsparken 13, DK-2100 Copenhagen Ø, Denmark
Publication date: February 1, 1990
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