Systat PeakFit

Peakfit's state-of-the-art nonlinear curve fitting is essential for accurate peak analysis and conclusive findings. PeakFit uses three procedures to automatically place hidden peaks; while each is a strong solution, one method may work better with some data sets than the others. The Residuals procedure initially places peaks by finding local maxima in a smoothed data stream. Hidden peaks are then optionally added where peaks in the residuals occur. The Second Derivative procedure searches for local minima within a smoothed second derivative data stream. These local minima often reveal hidden peaks. The Deconvolution procedure uses a Gaussian response function with a Fourier deconvolution/ filtering algorithm. A successfully deconvolved spec-trum will consist of sharpened” peaks of equivalent area. The goal is to enhance the hidden peaks so that each represents a local maximum. More info