The content of major components(S and TFe)and ten minor components(MgO,Al2O3,SiO2,P,CaO,TiO2,Mn,Cu,Zn and Pb)in pyrite was determined by X-ray fluorescence spectrometry(XRF).The sample fusion preparation technique was used to eliminate the grain-size effect and mineral effect.The optimized fusion conditions were obtained:0.500 0g of sample,7.222 3g of Li2B4O7 as flux,3.805 5g of LiNO3 as oxidizing agent and 0.02 g of NH4 I as release agent.The fused Li2B4O7 protection layer on wall was formed to avoid the c...
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