期刊
ANALYTICAL SCIENCES
卷 21, 期 12, 页码 1483-1489出版社
JAPAN SOC ANALYTICAL CHEMISTRY
DOI: 10.2116/analsci.21.1483
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This paper reports the experimentally determined and calculated partition coefficients (K-p) in a heterogeneous system consisting of two partially mixing organic solvents for trimethylsilyl derivatives of 119 compounds including phenols, phenolcarboxylic acids, mono- and dicarboxylic acids, and some carbohydrates and polyols. It was demonstrated that a simple model based on the available physico-chemical properties of molecules can be used to accurately predict the hexane-acetonitrile partition coefficients. Phenols, other organic acids, and carbohydrates form complex mixtures in extracts of plant tissues, in various biological fluids, as well as in waste waters. For group identification of these mixture components, it is desirable to use the parameter j which is a combination of K-p and gas chromatographic retention indices: j = kI - log K-p. This approach increases identification reliability in gas chromatographic analysis. The use of the group parameter j in the analysis of nonvolatile organic components of waste waters is reported.
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