Effects of solvent composition in the normal-phase liquid chromatography of alkylphenols and naphthols
The normal-phase liquid chromatographic models of Scott, Snyder, and Soczewinski were considered for a ..mu..-Bondapak NH/sub 2/ stationary phase. n-Heptane:2-propanol and n-heptane:ethyl acetate mobile phases of different compositions were used. Linear relationships were obtained from graphs of log K' vs. log mole fraction of the strong solvent for both n-heptane:2-propanol and n-heptane:ethyl acetate mobile phases. A linear relationship was obtained between the reciprocal of corrected retention volume and % wt/v of 2-propanol but not between the reciprocal of corrected retention volume and % wt/v of ethyl acetate. The slopes and intercept terms from the Snyder and Soczewinski models were found to approximately describe interactions with ..mu..-Bondapak NH/sub 2/. Capacity factors can be predicted for the compounds by using the equations obtained from mobile phase composition variation experiments.
- Research Organization:
- Univ. of Wyoming, Laramie
- DOE Contract Number:
- AC22-79ET14874
- OSTI ID:
- 5675569
- Journal Information:
- Anal. Chem.; (United States), Vol. 53:13
- Country of Publication:
- United States
- Language:
- English
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