Spectroscopic study of the aluminium/lumogallion system in the presence of non-ionic surfactants |
| |
Authors: | J.L. Carrión Dominguez M. de la Guardia Cirugeda |
| |
Affiliation: | Department of Analytical Chemistry, Faculty of Chemistry, University of Valencia, Burjasot, Valencia Spain |
| |
Abstract: | The effects of different non-ionic ethylene oxide condensate surfactants on the fluorescence and the molecular absorption of the aluminium/lumogallion system are reported. Ethylene oxide condensates with fatty alcohols give higher micellar enhancement factors than tert-octylphenols or nonylphenols; ethylene oxide/propylene oxide copolymers provide only a 50% increase in the fluorescence of the complex. The aluminium/lumogallion seems to form mixed micelles with the fatty alcohol condensates; the strong complex/micelle interaction provides increased absorbance of the complex at 500 nm and higher fluorescence enhancement, allowing the detection of 0.11 μg l?1 aluminium. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |