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See Chinese contents: HJ 780-2015 HJ 780-2015: Soil and sediment. Determination of inorganic element. Wavelength dispersive X-ray fluorescence spectrometry
This Standard specifies the wavelength dispersive X-ray fluorescence spectrometry method for the determination of 25 inorganic elements and 7 oxides in soil and sediment. This Standard is application to the determination of 25 inorganic elements and 7 oxides in soil and sediment; including Arsenic (As), Barium (Ba), Bromine (Br), Cerium (Ce), Chlorine (Cl), Cobalt (Co), Chromium (Cr), Copper (Cu), Gallium (Ga), Hafnium (Hf), Lanthanum (La), Manganese (Mn), Nickel (Ni), Phosphorus (P), Lead (Pb), Rubidium (Rb), Sulfur (S), Scandium (Sc), Strontium (Sr), Thorium (Th), Titanium (Ti), Vanadium (V), Yttrium (Y), Zinc (Zn), Zirconium (Zr), Silicon Dioxide (SiO2), Aluminum Oxide (Al2O3), Ferric Oxide (Fe2O3), Potassium Oxide (K2O), Sodium Oxide (Na2O), Calcium Oxide (CaO), Magnesium Oxide (MgO). The detection limit of this method for 22 inorganic elements is 1.0mg/kg~50.0mg/kg; the lower limit for determination is 3.0mg/kg~150mg/kg. The detection limit for 7 oxides is 0.05%~0.27%; the determination lower limit is 0.15%~0.81%. See Appendix A for details.
