GAS LIQUID PARTITION CHROMATOGRAPHY OF MIXTURES CONTAHOTG PHENOL AND FIVE OF ITS t-BUTXL DERIVATIVES

摘要

Complete separation and quantitative analysis of mixtures of phenol and its five ortho- and "para-t-butyl derivatives has been accomplished by gas liquid partition chroma-tography. The partition column, three meters in length, contains a specially selected stationary phase that consists of three parts Silicone Oil 550 and two parts of CARBOWAX 4000. The particular amounts of Silicone and CARBOWAX are quite important, since changes in their ratio alter the retention times for the various phenols.. This produces different orders of emergence for these phenols from particular mixed columns. Reasons for this occurrence are discussed. Analysis of synthetic samples shows the mean deviation of results to be 0.4 per cent of the total and the maximum deviation 1.0 per cent.