Related Experiment Videos
Simulation and optimization of retention in ion chromatography using virtual column 2 software.
John E Madden1, Matthew J Shaw, Greg W Dicinoski
1Australian Centre for Research On Separation Science (ACROSS), University of Tasmania, GPO Box 252-75, Hobart, Tasmania, 7001, Australia.
Analytical Chemistry
|December 25, 2002
Summary
A new software, Virtual Column 2, predicts ion chromatography retention times using the linear solvent strength model, enabling efficient method development. This tool accurately forecasts analyte behavior across various eluent compositions, aiding researchers.
Area of Science:
- Analytical Chemistry
- Chromatography
Background:
- Ion chromatography (IC) is crucial for inorganic anion separation.
- Accurate prediction of analyte retention times is vital for method development and optimization.
Purpose of the Study:
- To introduce Virtual Column 2, a software package for simulating and optimizing inorganic anion separations by IC.
- To present the linear solvent strength model, empirical approach (LSSM-EA) for predicting retention times.
Main Methods:
- Utilizing limited experimental retention data within a correct experimental design.
- Applying the LSSM-EA to predict retention times across a range of eluent compositions.
- Developing and solving equations for the LSSM-EA within the Virtual Column 2 software.
Main Results:
- Virtual Column 2 accurately predicts retention times for eluents with one or two competing ions.
- The software includes retention databases for multiple analytes and columns.
- Predicted retention times generally agree with experimental data within 5%.
Conclusions:
- Virtual Column 2 is a valuable tool for IC method development, education, and refinement.
- The LSSM-EA provides a robust model for predicting IC separations.
- The software offers a free version for wider accessibility and application.