Transient infrared emission spectroscopy

Journal Article · Sat Apr 01 00:00:00 EST 1989 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00182a003· OSTI ID:6191102

Jones, R W; McClelland, J F

Transient infrared emission spectroscopy (TIRES) is a new method that produces analytically useful emission spectra from optically thick, solid samples by greatly reducing self-absorption of emitted radiation. The method reduces self-absorption by creating a thin, short-lived, heated layer at the sample surface and collecting the transient emission from this layer. The technique requires no sample preparation and may be applied to both moving and stationary samples. The single-ended, noncontact TIRES measurement geometry is ideal for on-line and other remote-sensing applications. TIRES spectra acquired via a Fourier transform infrared spectrometer on moving samples of coal, plastic, and paint are presented and compared to photoacoustic absorption spectra of these materials. The TIRES and photoacoustic results are in close agreement as predicted by Kirchhoff's law.

• Research Organization: Iowa State Univ., Ames (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6191102
• Journal Information: Anal. Chem.; (United States), Vol. 61:7
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
COAL
QUANTITATIVE CHEMICAL ANALYSIS
PAINTS
PLASTICS
EMISSION SPECTROSCOPY
EXPERIMENTAL DATA
FOURIER TRANSFORM SPECTROMETERS
INFRARED SPECTRA
PREDICTION EQUATIONS
TRANSIENTS
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COATINGS
DATA
ENERGY SOURCES
EQUATIONS
FOSSIL FUELS
FUELS
INFORMATION
MATERIALS
MEASURING INSTRUMENTS
NUMERICAL DATA
PETROCHEMICALS
PETROLEUM PRODUCTS
SPECTRA
SPECTROMETERS
SPECTROSCOPY
SYNTHETIC MATERIALS
400102* - Chemical & Spectral Procedures
010600 - Coal
Lignite
& Peat- Properties & Composition