论文部分内容阅读
矿石中镍的极谱测定,通常采用的氨底液(3M氨-1M氯化铵),钒对镍的测定有影响。为了弄清钒对镍的影响,我们研究了氮底液组成与镍和钒的峰电位和波形的关系,得知氯化铵浓度降低时,镍和钒的峰电位向相反方向移动。氨浓度增加时,镍和钒的峰电位均向负移动。动物胶用量增加使镍的波形变宽,峰电位向负移动。我们选用2.6M氨、0.1M氯化铵,0.005％动物胶和1％亚硫酸钠组成的底液,在20毫升
Determination of nickel ores in ores, commonly used in the ammonia solution (3M ammonia - 1M ammonium chloride), vanadium has an impact on the determination of nickel. In order to understand the effect of vanadium on nickel, we studied the relationship between the composition of the bottom of the nitrogen solution and the peak potentials and waveforms of nickel and vanadium. When the concentration of ammonium chloride is decreased, the peak potentials of nickel and vanadium move in the opposite directions. When the ammonia concentration is increased, the peak potentials of nickel and vanadium move toward negative. Increasing the amount of animal glue nickel waveforms widening, the peak potential to move negative. We choose 2.6M ammonia, 0.1M ammonium chloride, 0.005% animal glue and 1% sodium sulfite composition of the bottom liquid in 20 ml