Fluorescence-line-narrowing spectrometry of polycyclic aromatic hydrocarbons in organic glasses. [Pyrene, 1-alkylpyrene, benzo(e)pyrene, benzo(a)pyrene, benzo(k)fluoranthene, perylene]

Technical Report · Thu Jul 01 04:00:00 EDT 1982

OSTI ID:6863616

Brown, J C

Fluoresence line narrowing spectrometry (FLNS), also known as optical site selection spectroscopy, is a relatively new technique holding great promise as an analytical tool. Species specific analysis of complex samples for low concentrations of polycyclic aromatic hydrocarbons (PAHs) is a difficult analytical problem. The PAH analysis problem is reviewed herein as are the mechanisms and characteristics of FLNS which make this new methodology appear ideal for application to the problem. Organic glasses are presented as the cryogenic matrices of choice for analytical FLNS. An experimental arrangement utilizing sensitive gated signal detection is used to test the analytical utility of FLNS. Data presented show that linear quantitative response from concentrations between saturation (about 1 ppM) and the low parts per trillion range is obtained. The demonstrated high precision and linearity of response show that routine analytical FLNS using organic glass matrices need not use internal standard and/or standard addition quantitation schemes. Unambiguous determinations of compounds in complex samples are shown to be expected. This expectation is shown to be realistic by demonstrating, in successive chapters: the unique FLNS behavior of each of 27 polycyclic aromatic compounds tested; resolution of the 13 fluorescing species in a 14 component artificial mixture; and determination of pyrene, 1-alkylpyrene, benzo(e)pyrene, anthracene, benzo(a)pyrene, benzo(k)fluoranthene, and perylene in an unseparated sample of SRC-II coal liquification product. (51 figures, 4 tables.)

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6863616
• Report Number(s): IS-T-988; ON: DE83004960
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
ANTHRACENE
AROMATICS
CHEMICAL ANALYSIS
COAL LIQUIDS
CONDENSED AROMATICS
DATA
DISPERSIONS
ELECTROMAGNETIC RADIATION
EMISSION SPECTROSCOPY
EXPERIMENTAL DATA
FLUIDS
FLUORESCENCE SPECTROSCOPY
GLASS
HYDROCARBONS
INFORMATION
LASER RADIATION
LINE NARROWING
LIQUIDS
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
PYRENE
QUANTITATIVE CHEMICAL ANALYSIS
RADIATIONS
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TRACE AMOUNTS