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System Peaks and Their Positive and Negative Aspects in Chromatographic Techniques by Jan Srbek; Pavel Coufal; Zuzana Bosáková; Eva Tesařová is a Chemistry article available to read on EtoBox.

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## Abstract Whenever a mobile phase contains more than one component, additional signals commonly called system peaks can appear. The origin of these signals is explained through loss of equilibrium in the separation column caused by injection of analyte dissolved in a different solvent than the mobile phase. The system peaks are then generated by a relaxation process started by the non‐equilibrium state. An overview of the theory and applications of the system peaks in separation methods, mainly in liquid chromatography, is presented in this paper. Only a brief theoretical discussion of the system peak origin is given as the theoretical aspects of system peak formation have already been published in many papers. The main focus of this review is to summarize applications, in which system peaks were used to measure physical or physicochemical data. Signals of system peaks are often misinterpreted but they offer valuable information about thermodynamics and kinetics of the separation process that takes place in chromatographic column.

Who reads System Peaks and Their Positive and Negative Aspects in Chromatographic Techniques?

Author

Jan Srbek; Pavel Coufal; Zuzana Bosáková; Eva Tesařová

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1615-9306)

Published

2005

Language

EN

Field

Chemistry (Physical Sciences)