SYSTAT PeakFit 4.12

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Systat PeakFit 4.12, Windows

SYSTAT PeakFit 4.12 at Academic & Collegiate Software best prices for students, schools and non-profits!

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For Educational & Non-Profit Customers: $494.95

Product Code: 114003ENP

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PeakFit separates and analyzes nonlinear peak data better, more accurately and more conveniently than your lab instrument. Nonlinear curve fitting is by far the most accurate way to reduce noise and quantify peaks.

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 three Procedures are...

Residuals - initially places peaks by finding local maxima in a smoothed data stream
Second Derivative - searches for local minima within a smoothed second derivative data stream
Deconvolution - uses a Gaussian response function with a Fourier deconvolution/ filtering algorithm.

PeakFit helps you separate overlapping peaks by statistically fitting numerous peak functions to one data set, which can help you find even the most obscure patterns in your data. The background can be fit as a separate polynomial, exponential, logarithmic, hyperbolic or power model. This fitted baseline is then subtracted before peak characterization data (such as areas) is calculated, which gives much more accurate results.

PeakFit is the automatic choice for Spectroscopy, Chromatography or Electrophoresis. AI Experts throughout the smoothing options and other parts of the program automatically help you to set many adjustments.PeakFit can even deconvolve your spectral instrument response so that you can analyze your data without the smearing that your instrument introduces. By Using 82 nonlinear peak models to choose from, you're almost guaranteed to find the best equation for your data.

PeakFit includes 18 different nonlinear spectral application line shapes, including the Gaussian, the Lorentzian, and the Voigt, and even a Gaussian plus Compton Edge model for fitting Gamma Ray peaks. As a product of the curve fitting process, PeakFit reports amplitude (intensity), area, center and width data for each peak. Overall area is determined by integrating the peak equations in the entire model.

The Voigt function is a convolution of both the Gaussian and Lorentzian functions. Most analysis packages that offer a Voigt function use an approximation with very limited precision. PeakFit actually uses a closed-form solution to precisely calculate the function analytically. PeakFit has four different Voigt functions, so you can fit the parameters you're most interested in, including the individual widths of both the Gaussian and Lorentzian components, and also the amplitude and area of the Voigt function. PeakFit's precise calculation of the Voigt function is crucial to the accuracy of your analysis.