Title: Migration behavior of aromatic amines on alumina thin layers developed with water‐in‐oil microemulsion
Abstract: Abstract Water‐in‐oil (w/o) microemulsions consisting of surfactant [sodium dodecyl sulfate (SDS) or N ‐Cetyl‐ N,N,N ‐trimethyl ammonium bromide], water, heptane or hexane, and a cosurfactant (1‐pentanol or butanol) have been used as a mobile phase in combination with alumina, microcrystalline cellulose, silica gel G, silica gel H, and Kieselguhr thin layers to study the retention efficiency of amines. The separation of amines from their ternary and binary mixtures is achieved. Thin layers of alumina as the stationary phase and SDS/water/heptane/1‐pentanol microemulsion as mobile phase is identified as the best chromatographic system for amine analysis. The limits of identification and dilution are reported for amines. Effects of heavy metals, anions, and phenols on the separation efficacy of diphenylamine‐ p ‐chloroaniline‐ p ‐nitroaniline have also been examined. The effect of electrolyte in the microemulsion on amine mobility is investigated. The o ‐ and p ‐isomers move faster compared to the m ‐isomer of aniline.
Publication Year: 1999
Publication Date: 1999-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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