Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Original Papers
Superheated Water Chromatography of Phenols Using Poly(styrene-divinylbenzene) Packings as a Stationary Phase
Takashi YARITARyoji NAKAJIMAMasami SHIBUKAWA
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2003 Volume 19 Issue 2 Pages 269-272

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Abstract

A method for the superheated water chromatography of phenols was developed using a poly(styrene-divinylbenzene) (PSDVB) stationary phase. The stationary phase of superheated water chromatography must be stable against the attack of water. A durability test for PSDVB packings and octadecylsilyl (ODS)-silica gels indicated that PSDVB packings were stable in superheated water in the temperature range of 100 - 150°C, whereas octadecylsilyl groups of ODS-silica gels cleaved even at 100°C. The retention of phenols on the PSDVB stationary phase decreased with an elevation of the column themperature. The retention mechanism was characterized using a thermodynamic theory that has been used for describing retention in conventional RP-HPLC. The application of the present method to an environmental analysis was also demonstrated, in which a suitable separation with good peak shape was obtained for p-chlorophenol in river-water samples.

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© 2003 by The Japan Society for Analytical Chemistry
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