Room-temperature phosphorescence of polynuclear aromatic hydrocarbons in cyclodextrins

Journal Article · Wed Feb 29 23:00:00 EST 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00267a005· OSTI ID:6140430

Scypinski, S; Love, L J.C.

A new approach for production of phosphorescence at room temperature in fluid solution using microscopically organized media is described. Lumiphors form inclusion complexes inside cyclodextrin molecules and, in the presence of a heavy-atom-containing species, undergo emission from their triplet state. The resulting phosphorescence is intense, spectrally well resolved, and partially insensitive to quenching by dissolved oxygen. Only molecules that physically can enter the cyclodextrin cavity are phosphorescent, which provides considerable selectivity based on lumiphor size. Shapes of analytical calibration curves are similar to those obtained for micelle stabilized room-temperature phosphorescence and are linear over 4 decades. Typical precision is < 10% RSD, with limits of detection in the 10/sup -11/ to 10/sup -13/ M range. Application of the method to the determination of polynuclear aromatic hydrocarbons is discussed. 26 references.

• Research Organization: Seton Hall Univ., South Orange, NJ
• OSTI ID: 6140430
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:3; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
400301 -- Organic Chemistry-- Chemical &amp; Physicochemical Properties-- (-1987)
AROMATICS
BIPHENYL
CARBOHYDRATES
CHEMICAL ANALYSIS
CONDENSED AROMATICS
DATA
DEXTRIN
EMISSION SPECTRA
EXPERIMENTAL DATA
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
LUMINESCENCE
MEDIUM TEMPERATURE
MICELLAR SYSTEMS
NAPHTHOLS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHENOLS
PHOSPHORESCENCE
PHOSPHORS
POLYSACCHARIDES
QUANTITATIVE CHEMICAL ANALYSIS
SACCHARIDES
SPECTRA