Micellar enhanced spectrofluorimetric methods: application to the determination of pyrene

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Anal. Lett.; (United States)

DOI:https://doi.org/10.1080/00032718208064379· OSTI ID:5532882

Singh, H; Hinze, W L

The effects of cationic hexadecyltrimethylammonium chloride (CTAC), nonionic polyoxyethylene(9.5)p-1,1,3,3-tetramethylbutylphenol, Triton X-100 (TX-100), and anionic sodium dodecylsulfate (NaLS) surfactant micelles upon the spectrofluorimetric determination of pyrene is described. It was found that the intensity of the pyrene fluorescence is enhanced from 3 to 16 times in the presence of the micellar systems. Possible reasons for this micellar induced enhanced fluorescence are discussed. The spectral parameters, fluorescence lifetimes, quantum yields, lower detection limits, and analytical figures of merit for pyrene in CTAC, NaLS, TX-100, ethanol, and water are compared. The detection limit of pyrene in the presence of micelles (approx. 1.0 x 10/sup -10/ M) is about an order of magnitude lower than that possible in alcohol alone. A brief discussion on the predicted general applicability of this new technique in fluorimetric analysis is also given. 4 figures, 2 tables.

• Research Organization: Wake Forest Univ., Winston-Salem, NC
• OSTI ID: 5532882
• Journal Information: Anal. Lett.; (United States), Journal Name: Anal. Lett.; (United States) Vol. 15:A3; ISSN ANALB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
ALCOHOLS
AROMATICS
CONDENSED AROMATICS
EMISSION SPECTROSCOPY
ETHANOL
FLUORESCENCE
FLUORESCENCE SPECTROSCOPY
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LUMINESCENCE
MICELLAR SYSTEMS
OPTIMIZATION
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PYRENE
SOLUBILITY
SPECTROSCOPY
SURFACTANTS
USES
WATER