Use of factor analysis and liquid chromatography to determine the number of species in reactions of potassium ions with selected polyethers |
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Authors: | Marius D amboise,Denis Noel |
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Affiliation: | Department of Chemistry, University of Montreal, P.O. Box 6210, Station A, Montreal H3C 3V1 Canada |
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Abstract: | Abstract factor analysis is used to determine the number of species in chemical systems from data obtained by high-performance liquid chromatography. Retention data for the systems involving the reaction between potassium ions and three polyethers, benzo-5-crown-5, dibenzo-18-crown-6, and dibenzo-24-crown-8, were obtained in methanol at room temperature. The experimental data were factor-analyzed in order to yield the number of species in the reacting system. In addition to the usual criteria, it is proposed that tree-dimensional graphs of calculated data be compared to three-dimensional graphs of raw data in order to evaluate the factor space. It is also suggested that the three-dimensional graphs showing the residual error matrix be examined as a tool in the evaluation of the factor space. Two species were found from the reaction between benzo-15-crown-5 and potassium, one from dibenzo-18-crown-6-, and there from dibenzo-24-crown-8 in methanol. |
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