Simultaneous multielement analysis of coals and fly ashes by inductively coupled plasma atomic emission spectrometry.

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

“…The concentration of 10 other elements (Al, Fe, Ca, Mg, Ti, Mn, Cr, V, Zn, and Cu) of 54 separated fractions was determined on an Atomcomp 975 (Jarrell Ash Corp.) calibrated with multielement standard solutions prepared from NBS 1633a coal fly ash sample. The method used to decompose 10 mg of sample was basically the same as that reported by Haraguchi (13). A total of 10 mg of sample was decomposed with 1 mL of 60% perchloric acid and 1 mL of hydrochloric acid, and the final volume of sample solution was made up to 10.0 mL for the determination of 10 elements by ICP.…”