Coal sample decomposition for atomic spectrochemical analysis monitoring
Expansion of use of coals for energy-producing and technological purposes is inseparably linked with the problem of environmental pollution prevention, which in turn calls for reliable monitoring of the content of deleterious trace elements in coals, their processing products, and industrial wastes. For this purpose practically all techniques of analytical chemistry, ranging from photometry to spark-mass-spectrometry and neutron-activation analysis using fast-neutron reactors are used. In this context, such efficient analytical techniques as atomicabsorption spectrometry and atomic-emission spectrometry with plasma ionization of the sample require predecomposition of the analysis material and dissolution of the sample. In this work the authors compare the analytical potentials of the techniques of coal sample decomposition by fusion with an oxidizing flux based on lithium borates, by fusion with potassium superoxide, by dissolution with an acid after autoclave combustion of the sample with oxygen, and by autoclave fluorination of coal with xenon tetrafluoride in the determination of trace elements by atomic-absorption and plasma atomic-emission spectrometry.
- OSTI ID:
- 6017554
- Journal Information:
- J. Anal. Chem. USSR (Engl. Transl.); (United States), Vol. 40:2; Other Information: Translated from Zhurnal Analiticheskoi Khimii, Vol. 40, No. 2, pp. 253-257, February, 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ABSORPTION SPECTROSCOPY
SAMPLE PREPARATION
COAL
EMISSION SPECTROSCOPY
ENVIRONMENTAL IMPACTS
QUANTITATIVE CHEMICAL ANALYSIS
WASTE MANAGEMENT
ACTIVATION ANALYSIS
BORATES
DISSOLUTION
ELEMENTS
FAST NEUTRONS
FAST REACTORS
FLUORINATION
IONIZATION
LITHIUM COMPOUNDS
MASS SPECTROSCOPY
MONITORING
PHOTOMETRY
POTASSIUM OXIDES
SAMPLING
STAGED COMBUSTION
TRACE AMOUNTS
XENON FLUORIDES
ALKALI METAL COMPOUNDS
BARYONS
BORON COMPOUNDS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COMBUSTION
ELEMENTARY PARTICLES
ENERGY SOURCES
EPITHERMAL REACTORS
FERMIONS
FLUORIDES
FLUORINE COMPOUNDS
FOSSIL FUELS
FUELS
HADRONS
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
MANAGEMENT
MATERIALS
NEUTRONS
NUCLEONS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
RARE GAS COMPOUNDS
REACTORS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
XENON COMPOUNDS
010600* - Coal
Lignite
& Peat- Properties & Composition
010900 - Coal
Lignite
& Peat- Environmental Aspects