PeakFit by Systat Software Inc

Manufacturer Systat Software Inc
Find the most obscure patterns and separate overlapping peaks by statistically fitting numerous peak functions to one data set. The background can be fit as a separate polynomial, exponential, logarithmic, hyperbolic or power model. 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. Hi...


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PeakFit

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Find the most obscure patterns and separate overlapping peaks by statistically fitting numerous peak functions to one data set. The background can be fit as a separate polynomial, exponential, logarithmic, hyperbolic or power model.

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.