6533b853fe1ef96bd12abf6d
RESEARCH PRODUCT
Some observations on the fluorometric determination of metallic elements in micellar media
M. De La Guardia CirugedaJ. L. Carrion. Dominguezsubject
ChemistryLigandAnalytical chemistryFluorescenceMicelleAnalytical ChemistryMetalchemistry.chemical_compoundMonomerPulmonary surfactantvisual_artCritical micelle concentrationvisual_art.visual_art_mediumPhysical chemistryEmission spectrumSpectroscopydescription
Abstract Experimental evidence is given allowing us to interpret why the detection limits obtained in micellar media are higher than those expected according to fluorescence enhancements for the niobium-lumogallion-tartrate system in the presence of different nonionic surfactants. The residual fluorescence of the surfactant solution and the competitive interaction with micelles between complexes and free ligands were studied. Near the critical micelle concentration of surfactants, remarkable changes in the emission spectra were observed in the case of both complex and free ligand solutions, which indicate the existence of interactions between the chemical system and surfactant monomers and micelles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1989-02-01 | Microchemical Journal |