摘要
用浓盐酸、浓硝酸溶解试样后,在WFX2B2型原子吸收光谱仪上采用铜的灵敏线249.2nm和次灵敏线327.4nm作为分析线,对铜矿石试样进行了测定,实验证明:在0.2mol/L的盐酸溶液中,以FAAS积分法测定铜元素,其它金属离子不干扰铜元素的测定,与碘量法相对比,方法具有快速、简便、准确的优点。变异系数小于百分之一。
The sample of ore is dissolved in concentrated HCL or HNO_3 and the concentration of sample solution is0.2mol/L (for CH1). The next sensitive spectral lines of Cu (249.2nm and 327.4nm) are selected as selected asanalytical lines. Other ions do not interfere in the determination. The method is simple. rapid and accurate.The RSD is less then 1%.Copper content the within the range fo 0.01%—29% can bedetermined.
关键词
火焰原子吸收光谱
铜
矿石
次灵敏线
Flame Atomic Absorption
Copper
Ore
The next senstive spectral lines
