Total reflection X-ray fluorescence analysis of fly ash from Bulgarian coal-fired power plants
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Albena K. Detcheva
,
Svilen E. Mitsiev
Abstract
The contents of Cl, Ca, K, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Rb, Sr, Ba and Pb in raw coal fly ash from five Bulgarian power plants were determined by total reflection X-ray fluorescence (TXRF), using gallium as the internal standard. The samples were analysed as in slurry form in TritonTM X-114. The experimental parameters, such as grain size, concentrations of fly ash slurry and excitation time were optimised. For validation of the method, the certified reference material BCR-176R fly ash was used. The precision of the results obtained is characterised by a relative standard deviation of approximately 10 %. The resulting data confirm the suitability of TXRF for the simultaneous determination of major, minor and trace elements in coal fly ash samples. Further advantages provided by TXRF are easy sample preparation (no sample dissolution) and the small sample amount required for analysis.
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Artikel in diesem Heft
- Perovskite ceramics and recent experimental progress in reactor design for chemical looping combustion application
- Total reflection X-ray fluorescence analysis of fly ash from Bulgarian coal-fired power plants
- Ascorbic acid amperometric sensor using a graphene-wrapped hierarchical TiO2 nanocomposite
- Rapid determination of products of phenol hydrogenation in a supercritical water system using headspace gas chromatography
- Swelling of N-vinylcaprolactam–dodecyl methacrylate gel in {heptane + toluene} mixtures
- Extraction of Cu(II) with Acorga M5640 using hollow fibre liquid membrane
- Heat transfer in a jacketed agitated vessel equipped with multistage impellers
- Seasonal variation in alkaloid composition and antiproliferative activity of Stylophorum lasiocarpum (Oliv.) Fedde
- A polyacrylate prepared using polyurethane surfactants: properties of emulsion and film
- Efficient synthesis of glutaric acid from L-glutamic acid via diazoniation/hydrogenation sequence
- New insights into bromination process: effective preparation of Ambroxol
- A concise route to 4-aminomethylpyrazoles and 4-aminomethylisoxazoles from acetylacetone-derived hexahydropyrimidines under mild conditions
- Assessment of non-standard reaction conditions for asymmetric 1,3-dipolar organocatalytic cycloaddition of nitrone with α,β-unsaturated aldehydes
- β-Cyclodextrin as water-solubility enhancer for butylated hydroxytoluene
- Asymmetric polymerisation of substituted phenylacetylene using chiral Rh(2,5-norbornadiene)(L-proline) catalyst
