Depth Profiling and Signal Saturation in Photoacoustic FT-IR Spectra Measured with a Step-Scan Interferometer

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

A commercial step-scan FT-IR spectrometer has been used to obtain photoacoustic spectra of carbon black, coals, polymers, and clays. Variation of the external modulation frequency from 40 to 400 Hz shows that saturation affects many of the spectra. Nevertheless, comparison of spectra of oxidized coal with spectra of fresh coal obtained at the corresponding modulation frequencies yields results implying successful depth profiling. Several suggestions for further experiments are also presented.

Keywords: Infrared; Photoacoustic spectroscopy

Document Type: Rapid Communication

DOI: http://dx.doi.org/10.1366/0003702894203309

Affiliations: Energy, Mines and Resources Canada, CANMET, Coal Research Laboratories, P.O. Bag 1280, Devon T0C 1E0, Alberta, Canada

Publication date: February 1, 1989

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more