학술논문
Analytical methods used by the U. S. Geological Survey for determining the chemical composition of coal
Document Type
Conference
Author
Source
Prepr., Div. Pet. Chem., Am. Chem. Soc.; (United States); 22:2; Conference: 173. national meeting of the American Chemical Society, New Orleans, LA, USA, 20 Mar 1977; Other Information: See CONF-770301--P1
Subject
Language
English
Abstract
USGS has undertaken a program to sample and analyze all active coal mines in the U.S. The analysis is for the percent ash, composition of ash, and trace elements in ash and raw coal. The methods used, including various spectroscopic methods and activation analysis, and their accuracy are discussed. (DLC)