Real time analysis of metallic pollutant (CuO) by inductively coupled plasma system without calibration stage
Résumé
A method contributing to real-time analysis of metallic pollutant present in stack gas is investigated. This method is based on spectroanalysis using an ICP torch system without any calibration step. The fluidized bed technology is used to simulate heavy metal emission. The massic fluxes of copper oxide (CuO) are determined by using the intensities ratios of the metallic element spectral lines with those of the plasma gas element (argon or dry air). These ratios and the plasma characteristics (atomic excitation temperature Texc, degree of thermal disequilibrium theta) are inserted into a calculation code of plasma composition to determine the massic flux. A study of the fluidized bed properties is made to correlate the values with those resulting from the elutriation calculation of the copper oxide.