X-ray fluorescence spectrometry for analysis of fly ash column leachates

Conference · Thu Jan 01 04:00:00 EST 1981 · Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States)

OSTI ID:6469750

Young, H W; Boybay, M; Demirel, T; Young, J C

An investigation was conducted to determine the suitability of X-ray fluorescence (XRF) for analyzing the complex mixture of elements in fly ash leachates. XRF analysis was found to provide reasonably accurate measurement with coefficients of variation ranging from 2 to 8% for most elements. Sources of error included interferences by stimulation of fluorescent emissions by strong secondary fluorescent radiation, overlap of emission peaks, and adsorption of fluorescent emission from one element by others. Standardization required preparation of complex mixtures of elements similar in composition to that of leachates. This required considerable preparation time and effort, but once the standards were stored in instrument memory, analysis for as many as 30 elements in leachate specimens required only about 60 min. This study showed that XRF potentially is a valuable tool for analysis of the complex elemental mixtures in fly ash leachates, but additional work is needed to reduce error and increase instrument sensitivity.

• Research Organization: Civil Engineering Department and Engineering Research Institute, Iowa State University, Ames, IA
• OSTI ID: 6469750
• Report Number(s): CONF-820132-
• Conference Information: Journal Name: Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States) Journal Volume: STP-805
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
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Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACCURACY
AEROSOL WASTES
ASHES
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
DISPERSIONS
DISSOLUTION
EQUIPMENT
EXPERIMENT PLANNING
FLY ASH
LABORATORY EQUIPMENT
LEACHATES
LEACHING
MIXTURES
NONDESTRUCTIVE ANALYSIS
PLANNING
RESIDUES
SEPARATION PROCESSES
SOLUTIONS
SPECTROSCOPY
STANDARDS
SYNTHESIS
WASTES
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS
X-RAY SPECTROSCOPY