Time-resolved laser-induced spectrofluorometry for the study of uranium-anionic surfactant micelle interactions

Journal Article · Sat May 01 04:00:00 EDT 1993 · Journal of Colloid and Interface Science; (United States)

DOI:https://doi.org/10.1006/jcis.1993.1203· OSTI ID:6132247

Moulin, C; Reiller, P ^[1]; Beaucaire, C ^[2]; Lemordant, D ^[3]

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1. Laboratoire de Spectroscopie Laser Analytique, Gif sur Yvette (France)
2. Laboratoire de Chimie Analytique en Solution et d'Hydrogeochimie, Fontenay-aux-Roses (France)
3. Univ. Pierre et Marie Curie, Paris (France)

Time-Resolved Laser-Induced Spectrofluorometry (TRLIS) has been used to study the interaction between surfactants and uranyl ions (UO[sup 2+][sub 2]). Anionic surfactants (C[sub n]H[sub 2n+1]SO[sup [minus]][sub 3]) of different chain lengths have been investigated in acidic media below and above the critical micellar concentration (CMC) at constant uranium concentration. For comparison purposes, sulfite, short alkylsulfonates of different chain lengths (nonmicellar-forming), and a nonionic surfactant (Triton X100) were also investigated. From lifetime data and by using the Stern-Volmer equation, surfactant quenching constants toward uranium have been obtained. Uranyl quenching constants for the surfactants exhibit high values and differences are observed between short and long chain length alkylsulfonates.

• OSTI ID: 6132247
• Journal Information: Journal of Colloid and Interface Science; (United States), Journal Name: Journal of Colloid and Interface Science; (United States) Vol. 157:2; ISSN 0021-9797; ISSN JCISA5
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ACTINIDE COMPOUNDS
ACTINIDES
CHEMICAL REACTIONS
ELEMENTS
EMISSION SPECTROSCOPY
FLUORESCENCE SPECTROSCOPY
LASERS
METALS
MICELLAR SYSTEMS
MOLECULAR WEIGHT
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
SPECTROSCOPY
SULFITES
SULFONATES
SULFUR COMPOUNDS
SURFACTANTS
URANIUM
URANIUM COMPOUNDS
URANYL COMPOUNDS