Abstract
The position isomers of nitro-, fluoro-, bromo-, and iodophenols, were separated in microgram amounts by using the F and M 500 gas chromatograph with thermal conductivity detector. Isomeric methoxyphenols and benzene diols (catechol, resorcinol, and hydroquinone) also were shown to be separable, the latter mixtures being performed with the thermal conductivity detection or with flame ionization detection on the Perkin-Elmer 154 D gas chromatograph. Conditions are described for the simultaneous determination of microgram quantities of binary mixtures contaning the nitrophenol or fluorophenol isomers, and of the ternary mixture containing the three isomeric nitrophenols. Quantitative analysis of a solution containing resorcinol and hydroquinone could be performed by measurement of the peak heights. However, the presence of catechol interfered with the determination of its isomers.
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