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The preopt package for pre-optimization of gradient elutions in high-performance liquid chromatography

✍ Scribed by R. Cela; C.G. Barroso; C. Viseras; J.A. Pérez-Bustamante

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
987 KB
Volume
191
Category
Article
ISSN
0003-2670

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✦ Synopsis

A theoretical model is described for quick pre-optimization of binary multistep gradient elutions in liquid chromatography. This model utilizes experimental retentiontime data under isocratic elution conditions for different proportions of organic modifier in the mobile phase, and simulates the position of the peaks in the chromatogram by calculation of the average velocity of the peaks through the column. Optimization is done for multistep gradients by means of the simplex algorithm. The results must then be confirmed experimentally. Results are given demonstrating the power and validity of the model in the resolution of complex mixtures. The whole process done on a microcomputer with the PREOPT package usually takes about 30 min, without requiring user participation or chromatographic instrumentation. The growing sophistication

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