Comparison of element-specific capillary chromotography detectors for the identification of heteroatomic species in coal liquids
- Univ. of Leeds, Leeds (United Kingdom); and others
A series of heteroatom-rich coal and coal-derived liquids have been analysed using gas chromatography (GC) in combination with three different element-selective detectors. Selected chromatograms, including a supercritical extract (Mequinenza lignite) and aromatic fractions isolated from coal tar pitch samples are presented. In each case a series of sulphur- and/or nitrogen-containing compounds have been identified using either flame photometric detection (GC/FID/FPD) or nitrogen-phosphorous detection (GC/FID/NPD) and the information compared with that obtained from a GC coupled to an atomic emission detector (GC-AED). Preliminary results have demonstrated the relative response characteristics of each detector and their respective ability to acquire qualitative and quantitative information in interfering background matrices. Further, due to the unique capabilities of GC-AED, a number of dual heteroatomic (sulphur-oxygen and nitrogen-oxygen) compounds have been identified.
- OSTI ID:
- 254798
- Report Number(s):
- CONF-940813-; TRN: 96:003482-0153
- Resource Relation:
- Conference: 208. American Chemical Society (ACS) national meeting, Washington, DC (United States), 21-26 Aug 1994; Other Information: PBD: 1994; Related Information: Is Part Of 207th ACS national meeting. Volume 39, Nos. 1, 2, 3 and 4; PB: 1304 p.
- Country of Publication:
- United States
- Language:
- English
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