DLVO Fitting Program

This program predicts the electrostatic force between two identically charged solids in solution, by numerical solution (Runge-Kutta) of the Poisson Boltzman equation (It provides solutions for both constant charge and constant potential assumptions). The electrostatic + van der Waals force (DLVO force) between the solids is also available by addition of a van der Waals Force (which accounts for a retardation of the Hamaker constant as function of distance). The program is used to determine the surface potential or charge density of your solids by fitting the predicted force to a measured force(example colloidal probe atomic force microscopy or surface force apparatus data).

The numerical solution is based upon publication by Chan, Pashley and White (JCIS 77,1,19980,283-285).
The van der Waals force is based upon publication by Hunter R.J. (Aust. J. Chem., 1963, 16, 774-8).

Notes on use as well as comments in .ipf file are included. Place .ipf file in "User Procedures" folder before opening .pxp file.

Project Details

Current Project Release

DLVO Fitting Program IGOR.6.00.x

Release File: DLVO Fitting.zip
Version: IGOR.6.00.x
Version Date: Fri, 04/10/2015 - 10:32 am
OS Compatibility: Mac-Intel Windows
Release Notes: PXP and IPF files included in zip file
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