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
Studies in the relationship between molecular structure and chromatographic behaviour : Gas chromatographic study of monoalkylpyridines
โ Scribed by L.S. Bark; K.C. Wheatstone
- Book ID
- 108334589
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 629 KB
- Volume
- 92
- Category
- Article
- ISSN
- 1873-3778
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Regularities of the gas chromatographic behaviour of C6-C13 alkylbenzenes, ClO-C1 3 alkylnaphthalenes and C-C1 I alkyl aryl carbamates are described by structural models containing Van der Waals volumes and molecular connectivity indices of different orders. The dependences are shown to be approxima
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.
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
## SUbIMARY The RM values of phenol and' Ig methylated phenols on thin layers of cellulose impregnated with formamide, N-methylformamide or N,N-dimethylformamide are shown to be linearly related to the log of the concentration of the amide in the slurrying medium used in the preparation of the lay