Evaluation of 20 Elements in Soils and Sediments by ED-XRF of Monochromatic Excitation

There is an urgent need for the accurate analysis of heavy metal contamination in field ecology and environmental sciences, especially case trace metals, such as cadmium. Using doubly curved crystals (DCC) to achieve monochromatic X-ray excitation sample be measured a silicon drift detector (SDD) collect fluorescence elements, combined with algorithm fundamental parameters (FP), energy-dispersive (MED-XRF) system significantly improved detection limits target elements. The limits, precision, accuracy MED-XRF acquisition 20 including cadmium, lead, arsenic, were evaluated compared Determination Inorganic Elements Soil Sediment Wavelength-Dispersive Fluorescence Spectrometry report tested on actual samples. test results showed that limit inorganic elements soil sediment determined by was mostly better than industry standard, Cd, which 0.04 mg/kg. correctness fully met requirements daily laboratory testing and, quality control tool, ICP-MS consistent. research conducted this project constituted useful attempt expand improve analytical methods sediment, showing superior conventional ED-XRF WD-XRF current new method low content Cd soil. offers very important contribution census, conservation, rational use agricultural land, restoration improvement, provides strong support testing.