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Studies in the relationship between molecular structure and chromatographic behaviour : IX. An assessment of the role of polyamide surface in the thin-layer chromatography of phenols

✍ Scribed by L.S. Bark; R.J.T. Graham

Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
735 KB
Volume
27
Category
Article
ISSN
1873-3778

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✦ Synopsis

2Gth, rgG6; moclificcl August 1 Ith, IgGG) * Activation of the plates was for 15 min at 80". The activated plates were cooled in an evacuated desiccator. " MOLECULAR STRUCTURE AND CHROMATOGRAPWLC BEWAVLOUR. IX.

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Ethyl, propyl and butyl homologues of phenol have been chromatographed on layers of cellulose impregnated with simple amides (formamide, N-methylformamide and N,N-dimethylforrnamide) using hexane as the mobile phase. The plots of RM value vs. the logarithm of the concentration of the amide in the sl

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The additivity concept, inherent in the equations of MARTIN and KOVATS, is examined for some series of mono-substituted alkylphenols, chromatographed under a 'series of rigorously controlled conditions. It is concluded that for a chain length of up to four carbon atoms, the retention index changes b