【摘要】 试样经HCl,HNO3,HF ,HClO4 冒烟处理后 ,用HCl溶解盐类 ,加入SrCl2 作释放剂 ,EDTA作保护剂 ,于火焰原子吸收光谱仪上用标准曲线法测定钒钛精矿中氧化钙。在每毫升试液中 1mgFe ,40 μgTi,2 0 μgAl,2 μgMn和 5 μgV对测定无干扰 ,加标回收率在 95 %～ 10 5 %之间 ,相对标准偏差为 1 41%～ 1 96%。更多还原

【Abstract】 The samples were dissolved in HCl,HNO 3,HF,HClO 4,then evaporated until fuming ceased. After this, The salt species were dissolved in HCl SrCl 2 as release reagent and EDTA as protect reagent were added CaO in vanadium titanium concentarate was determined with standard curve method by flame atomic absorption spectrometry 1mg of Fe,40μg of Ti, 20μg of Al,2μg of Mn and 5μg of V in per milliliter test solution had no interference in the determination The recovery was 95%-105% The relative standard deviation was 1 41%-1 96%更多还原