Elemental characterization of particle size-density separated coal fly ash by spectrophotometry, ICP (inductively coupled plasma emission spectrometry), and scanning electron microscopy-energy dispersive x-ray analysis

1987 ◽  
Vol 21 (9) ◽  
pp. 898-903 ◽  
Author(s):  
Keiichi. Furuya ◽  
Yoshihiro. Miyajima ◽  
Tohru. Chiba ◽  
Tadashi. Kikuchi
1976 ◽  
Vol 22 (12) ◽  
pp. 2018-2024 ◽  
Author(s):  
R D Irons ◽  
E A Schenk ◽  
R D Giauque

Abstract Energy-dispersive x-ray spectroscopy and inductively coupled plasma emission spectrometry were evaluated as methods for routine multielement analysis of biological material. Standard samples included Standard Reference Materials (National Bureau of Standards), compounded mixtures, and supplements that provided a wide range of elemental concentrations for analysis. Elements included in this study were Zn, Pb, Ni, Mn, Fe, Mg, Cu, Ca, As, Se, Br, Rb, and Sr. Standards were analyzed as unknowns by participating laboratories. The two methods were evaluated for sensitivity, precision, and accuracy, and the results compared to those obtained for atomic absorption spectrometric analysis of identical standard unknowns. Both methods compared favorably and both were determined to be highly reliable for such an application. Advantages and disadvantages of each method are compared and discussed.


2011 ◽  
Vol 326 ◽  
pp. 131-138 ◽  
Author(s):  
Jawad Javaid Siddiqui ◽  
Jin Hao Qiu ◽  
Kong Jun Zhu ◽  
Hong Li Ji

La0.8Sr0.2Mn0.8Fe0.2O3 has been synthesized by solgel synthesis employing the EDTA complexing method and solgel self combustion using PVA as fuel and nitrates as oxidizing agent. The effect of these techniques on the phase purity, crystallinity and particle size has been studied. Different techniques including X-Ray Diffraction (XRD), Scanning electron microscopy (SEM), Thermo gravimetric/Differential thermal analysis (TG/DTA) and Inductively Coupled Plasma Emission Spectrometry (ICP-ES) have been utilized for the characterization of the synthesized materials.


Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 133
Author(s):  
Henryk R. Parzentny ◽  
Leokadia Róg

It is supposed that the determination of the content and the mode of occurrence of ecotoxic elements (EE) in feed coal play the most significant role in forecasting distribution of EE in the soil and plants in the vicinity of power stations. Hence, the aim of the work was to analyze the properties of the feed coal, the combustion residues, and the topsoil which are reached by EE together with dust from power stations. The mineral and organic phases, which are the main hosts of EE, were identified by microscopy, X-ray powder diffraction, inductively coupled plasma atomic emission spectrometry, and scanning electron microscope with an energy dispersive X-ray methods. The highest content of elements was observed in the Oi and Oe subhorizons of the topsoil. Their hosts are various types of microspheres and char, emitted by power stations. In the areas of long-term industrial activity, there are also sharp-edged grains of magnetite emitted in the past by zinc, lead, and ironworks. The enrichment of the topsoil with these elements resulted in the increase in the content of EE, by between 0.2 times for Co; and 41.0 times for Cd in the roots of Scots pine, common oak and undergrowth, especially in the rhizodermis and the primary cortex and, more seldom, in the axle roller and cortex cells.


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