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J Hazard Mater

Title:		Pyrohydrolytic determination of fluorine in coal: a chemometric approach
Author(s):		Sredovic I; Rajakovic L;
Address:		"Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia"
Journal Title:		J Hazard Mater
Year:		2010
Volume:		20091221
Issue:		1-Mar
Page Number:		445 - 451
DOI:		10.1016/j.jhazmat.2009.12.053
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Corrosion effects in thermal power plants and environmental impact cause an increase in demand for fluorine analysis in coal. Solid sample decomposition, organic and inorganic fluorine compounds, volatility of fluorine species are problems which deserve a special attention. The aim of this work was to optimize the pyrohydrolytic (Phy) determination of fluorine content in the lignite coal. The parameters of pyrohydrolysis were evaluated and optimized by two statistical methods: Plackett-Burman (PB) design and response surface methodology (RSM). The content of fluorine in the absorption solution was measured by fluoride ion-selective electrode. The limit of detection of the proposed method was 20 microg g(-1), with good recovery (95%) and relative standard deviation less than 5%. With such benefits as simplicity, precision, accuracy and economy, this method is highly suitable for routine analysis of coal"
Keywords:		Coal/*analysis Corrosion Environmental Pollution/*prevention & control Fluorine/*analysis Hydrolysis Incineration Ion-Selective Electrodes;
Notes:		"MedlineSredovic, I Rajakovic, Lj eng Research Support, Non-U.S. Gov't Netherlands 2010/01/12 J Hazard Mater. 2010 May 15; 177(1-3):445-51. doi: 10.1016/j.jhazmat.2009.12.053. Epub 2009 Dec 21"