Determination of arsenic, antimony, and selenium in coal by atomic absorption spectrometry with a graphite tube atomizer

Journal Article · Sat Jan 01 00:00:00 EST 1977 · J. Res. U.S. Geol. Surv.; (United States)

OSTI ID:5001009

Aruscavage, P

Submicrogram quantities of antimony, arsenic, and selenium in coal samples are determined by an atomic absorption procedure using an electrically heated graphite atomizer. The samples are decomposed in a mixture of nitric, sulfuric, and perchloric acids and are separated and concentrated by extraction from sulfuric acid-iodide solution into toluene. The results obtained on several intralaboratory reference samples and the National Bureau of Standards coal 1632 are compared with results from other methods. The determination can be made routinely for concentrations as small as 0.1 parts per million for arsenic, antimony, and selenium in the coal.

• Research Organization: Geological Survey, Reston, VA
• OSTI ID: 5001009
• Journal Information: J. Res. U.S. Geol. Surv.; (United States), Vol. 5:4
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
ANTIMONY
ABSORPTION SPECTROSCOPY
ARSENIC
COAL
CHEMICAL ANALYSIS
SELENIUM
NITRIC ACID
PERCHLORIC ACID
SENSITIVITY
SULFURIC ACID
CARBONACEOUS MATERIALS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
SEMIMETALS
SPECTROSCOPY
400104* - Spectral Procedures- (-1987)
010600 - Coal
Lignite
& Peat- Properties & Composition