COMPARISON OF 2 DIFFERENT APPROACHES TO CALIBRATE AN ENERGY-DISPERSIVE X-RAY-FLUORESCENCE SPECTROMETER FOR THE ANALYSIS OF AEROSOL LOADED FILTERS

The quantitative analysis of aerosol loaded filters by x-ray fluoresce nce spectroscopy implies the use of calibration curves obtained from s ynthetic standards. Two preparation methods to obtain these calibratio n samples are described and compared, showing that matrix and enhancem ent effects are neglible for membranous filters and that both calibrat ions lead to acceptable results. Calibration standards produced via an aerosol generator always lead to a greater sensitivity compared to th e standard produced with droplets. The filters resist the conditions o f replicated measurements.