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Solvation characteristics of porous graphitic carbon Hypercarb in subcritical water chromatography
M A Statkus1, E N Goncharova1, S Yu Gorbacheva1
1Lomonosov Moscow State University, Department of Chemistry, Analytical Chemistry Division, Russia.
Abstract:
Retention of 17 organic compounds was studied in high-temperature liquid chromatography mode on Hypercarb porous graphitic carbon with subcritical water as an eluent. Three different eluent temperatures were studied: 150, 175 and 200 °C. Abraham solvation parameters model was used for quantitative evaluation of retention data. It was found that increase of eluent temperature from 150 to 200 °C results in decrease of cavity formation system parameter v from 2.9 to 1.7. No clear tendency can be observed for temperature dependency of other system parameters.
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