Concentrations of various elements and inorganic ions in rice straw and ash
- 1 February 1994
- journal article
- research article
- Published by Taylor & Francis in Toxicological & Environmental Chemistry
- Vol. 41 (1-2) , 15-20
- https://doi.org/10.1080/02772249409357955
Abstract
Various elements and inorganic ions in rice straw and ash samples were analyzed by using inductively coupled plasma atomic emission spectrometry (ICP‐AES) and ion chromatography (IC). Five major elements: Mg, Mn, Al, Ca, and Fe and eight minor and trace elements: Cr, Cu, Ti, Zn, La, Sr, Ba, and Hg were detected in these samples, at more than ppm‐level. In ash samples the trace elements such as Y, As, V, Se, and Sc were also identified. The concentrations of SO4, PO4, Cl, Na, and K ions in these samples were higher than those of other ions measured. These elements and inorganic ion concentrations were approximately one order of magnitude higher in the ash than in the straw samples. Gas chromatography/mass spectrometry (GC/MS) and library search showed the presence of fatty‐, carboxylic‐ and nicotinic acids, and their derivatives in small quantities in the straw samples.Keywords
This publication has 2 references indexed in Scilit:
- Polychlorinated dibenzo-p-dioxins and dibenzofurans in rice straw smoke generated by laboratory burning experimentsBulletin of Environmental Contamination and Toxicology, 1993
- Mutagenicity and chemical characterization of organic constituents in rice straw smoke particulate matterEnvironmental Science & Technology, 1984