Abstract
The effect of column temperature on the reversed-phase retention of polycyclic aromatic hydrocarbons has been investigated using various chemically bonded phases. Four solutes, coronene, tetrabenzo[ a,cd,j,lm]perylene, tetrabenzo[ a,cd,f,lm]perylene and benzo[ lm]phenanthro[4,5,6- abcd]perylene, were used as the test probes. The temperature dependences of the retention are almost linear (the logarithm of capacity factor is proportional to the reciprocal of the column absolute temperature) with monomeric C 18, monomeric C 18 with endcapping and diphenyl bonded phases, while non-linear behaviour was observed with polymeric C 18 phases. These differences in behaviour of the stationary phases are interpreted in terms of their structural differences.
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