Depth Profiling of Oxidized Coal by Step-Scan Photoacoustic FT-IR Spectroscopy
Abstract:Recently, we described results of preliminary step-scan photoacoustic (PA) infrared measurements that established the viability of the method for depth profiling of oxidized coal. We have continued these investigations, which involve monitoring the intensity of the ∼ 1750 cm−1 carbonyl band as the modulation frequency (and thus the thermal diffusion length) is varied, in order to determine whether the method is reliable and quantifiable. Some recent data that affirm this suggestion are presented in this communication.
Document Type: Short Communication
Affiliations: Energy, Mines and Resources Canada, CANMET, Coal Research Laboratories, P.O. Bag 1280, Devon, Alberta T0C 1E0, Canada
Publication date: February 1, 1991
More about this publication?
- The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Request copyrighted SAS materials
- Spectroscopic Nomenclature
- Focal Point (Open Access)
- ingentaconnect is not responsible for the content or availability of external websites