Methods for the speciation and determination of arsenic and selenium in coal combustion products
Methods of sample preparation for the determination of total selenium, and selenite, selenate, arsenite, and arsenate in coal fly ash materials were evaluated. The measurement methods use atomic spectroscopy for the determination of total concentrations and ion chromatography (IC) for the determination of individual ionic species. Sample preparation procedures which minimize the loss or alteration of the species of interest was explored and defined. The utility of the sample preparation methods can be sample dependent, so caution is advised in their use. IC conditions were established for the determination in extract solutions of selenite, selenate, arsenite, and arsenate with minimal interference from common anions.
- Research Organization:
- Western Research Inst., Laramie, WY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-86MC11076
- OSTI ID:
- 10141865
- Report Number(s):
- DOE/MC/11076--3073; ON: DE92001258
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102
ANIONS
ARSENATES
ARSENIC COMPOUNDS
CHEMICAL AND SPECTRAL PROCEDURES
CHROMATOGRAPHY
COAL
COMBUSTION
FLY ASH
IONS
PROPERTIES AND COMPOSITION
QUALITATIVE CHEMICAL ANALYSIS
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLE PREPARATION
SELENATES
SELENITES
SELENIUM
SPECTROSCOPY
WASTE MANAGEMENT