Electrothermal vaporization and laser-induced fluorescence for screening of polyaromatic hydrocarbons

Journal Article · Wed Jul 15 04:00:00 EDT 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00141a031· OSTI ID:6182361

Kirsch, B A; Winefordner, J D

While the graphite furnace has been used as a vaporization source for laser-excited atomic fluorescence, it has not been widely applied to the laser-induced fluorescence of molecular vapors. In this work, laser-induced fluorescence of molecular vapors produced by electrothermal vaporization was investigated. The capabilities and behavior of the laser-induced fluorescence of polyaromatic hydrocarbons (PAHs) produced in a graphite furnace were evaluated in terms of sensitivity and potential use as a fingerprinting technique for particulate matter and other environmental samples. A new sampling technique was developed which allowed the direct collection of samples within the graphite rods of the furnace system. The advantages and limitations of this technique as a routine screening technique will be discussed.

• Research Organization: Univ. of Florida, Gainesville
• OSTI ID: 6182361
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:14; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400105 -- Separation Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR
AIR SAMPLERS
AROMATICS
CHEMICAL ANALYSIS
DATA
ENVIRONMENTAL MATERIALS
EQUIPMENT
EVAPORATION
EXPERIMENTAL DATA
FLUIDS
FLUORESCENCE
GAS LASERS
GASES
HYDROCARBONS
INFORMATION
LASERS
LUMINESCENCE
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PARTICLES
PARTICULATES
PERFORMANCE
PHASE TRANSFORMATIONS
POLYCYCLIC AROMATIC HYDROCARBONS
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLERS
SAMPLING