Inductively Coupled Plasma–Atomic Emission Spectrometric Analysis of Aqueous Slurries of Solids
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文摘
The direct injection of solids–water slurries into the torch of an inductively coupled plasma–atomic emission spectrometer offers a quick and easy method for the analysis of major and minor elements in various solids. In this project aqueous slurries of solids were prepared by wet milling with a stirred-ball slurry attritor mill and analyzed. Slurries of standard reference materials, prepared in the same way, were used as calibration standards. The best results were obtained with solids having a small particle size (2–5 μm) and a close distribution of particle sizes. The average percent relative error for slurry–ICP analysis of most major and minor elements was generally less than 5 % for the solids studied.