Study of the possibility of obtaining constant concentrations of organically soluble analytes in organic media during the operation of monolithic chromato-desorption systems in a static mode
Abstract
The development and improvement of methods and means for the preparation of standard samples of composition, substances and materials is one of the urgent tasks of modern analytical chemistry. Such samples are widely used for calibrating analytical instruments, checking the correctness of chemical analysis results, creating model environments for accelerated testing and studying the mechanism of various reactions and processes, evaluating the effectiveness of catalysts, and creating artificial gas and liquid media. Thus, the range of potential consumers of gas mixtures of known compositions is not limited to analytical chemists, but also includes a large number of specialists in various areas of science and production.
The study presents the results of an analytical solution of the problem - the development and manufacture of monolithic chromato-desorption systems (CDS), the use of which allows to obtain solutions of organic solvents with a known content of the target substance by a static method. The object of study is a polymer rod obtained as a result of polymerization of a two-component epoxy resin, in which the analyte, previously applied to a nanodispersed adsorbent, is uniformly distributed in the polymer volume. The extraction of analytes from CDS was carried out under various temperature and barometric conditions in a static extraction mode. The results of this study can be used to create solutions of organic solvents with a known content of the target substance.
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