Products & ReviewLab Informatics

PeakFit

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 initia…

Systat Software Inc

The supplier does not provide quotations for this product through SelectScience. You can search for similar products in our  Product Directory.

Ease of Use
After Sales Service
Value for Money
Write your own review

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.

Product Overview

Links