Fluorescence line narrowing spectrometry in organic glasses containing parts-per-billion levels of polycyclic aromatic hydrocarbons

Journal Article · Tue Aug 01 04:00:00 EDT 1978 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac50031a052· OSTI ID:6636799

Brown, J C; Edelson, M C; Small, G J

Preliminary work on the application of this procedure is described. A 1 : 1 glycerol : water system containing the sample is cooled to < 4.2/sup 0/K in a double nested helium Dewar which contains quartz optical windows. A control 553 Ar-ion laser is used for uv production. Spatial separation of the laser lines is achieved with external prisms, and detection electronics include a photon counting system as well as conventional analog equipment. A comparison of the line-narrowed fluorescence spectrum of pyrene in a 1 : 1 glycerol-ethanol glass at 4.2/sup 0/K with that of pyrene in biphenyl and in fluorene at ca. 10/sup 0/K is made. Representative spectra of anthracene (1.2 ppM), pyrene (224 ppB), and a mixture (100 ppB of each), in 1 : 1 glycerol: water at 4.2/sup 0/K are displayed. The authors expect to implement this method as a practical analytical tool for the analysis of polynuclear aromatic hydrocarbons at very low concentrations in contaminated water samples.

• Research Organization: Ames Lab., IA
• OSTI ID: 6636799
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 50:9; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
520200 -- Environment
Aquatic-- Chemicals Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALCOHOLS
ANALOG COMPUTERS
ANTHRACENE
AROMATICS
BIPHENYL
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
COMPUTERS
CONDENSED AROMATICS
CONTAINERS
CRYOGENICS
DEWARS
DISPERSIONS
ELECTROMAGNETIC RADIATION
EMISSION SPECTROSCOPY
ETHANOL
FLUORENE
FLUORESCENCE SPECTROSCOPY
GLASS
GLYCEROL
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
POLYCYCLIC AROMATIC HYDROCARBONS
PYRENE
QUANTITATIVE CHEMICAL ANALYSIS
RADIATIONS
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TRACE AMOUNTS
ULTRALOW TEMPERATURE
ULTRAVIOLET RADIATION
WATER
WATER POLLUTION