Artigo Revisado por pares

Alkaline chloramine-T reagent for the detection of phenolic compounds on thin-layer plates

1980; Elsevier BV; Volume: 196; Issue: 2 Linguagem: Inglês

10.1016/s0021-9673(00)80450-1

ISSN

1873-3778

Autores

K. L. Bajaj, Yogesh K Arora,

Tópico(s)

Electrochemical Analysis and Applications

Resumo

The chromatographic behaviour of some substituted phenolic compounds on silica gel layers impregnated with Al(III) and Cu(II) was studied. Addition of metal ions gives very good separations of some structural isomers. In order to establish whether any improvment in the separation could be achieved by varying the concentration of impregnant, three different concentrations of CuSO4 · 5H2O and AlCl3 · 6H2O (1, 2 and 4%, w/w) were used. A very good separation of hydroquinone and resorcinol on silica gel layers impregnated with CuSO4 was achieved. Aminophenols can be successfully separated using silica gel layers modified by CuSO4 addition. The optimum resolution of meta and para isomers was achieved on silica gel containing 0.51% Cu(II) ions (2% CuSO4 · 5H2O).

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