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我们经常分析的选矿试样要求测定含量0.00X～X%的钼.现行硫氰酸盐比色法需预先分离干扰元素,测定手续较为麻烦.国内有些单位利用钼的极谱催化波测定矿石中微量钼,但不适宜测定较高浓度的钼.J.B.Headridge等研究了在0.5M柠檬酸—0.025M硫酸—0.05M硝酸钍(pH3.5)介质中钼的极谱波[2],指出钼在此体系中有Mo(Ⅵ→Ⅴ)和Mo(Ⅴ→Ⅲ)的两个波,并利用钼的第一个波测定铌基合金中约4%的钼.关于硫酸—柠檬酸底液在钼的矿石分析中的应用,尚未见到资料介绍.本文研究了钼在硫酸—柠檬酸体系中的第二个极
We often analyze the dressing samples required determination of the content of 0.00X ~ X% of molybdenum.Current thiocyanate colorimetric separation of interfering elements need to be pre-measured procedures more trouble. Some domestic units using molybdenum polarographic catalytic wave determination of ore Trace molybdenum, but not suitable for the determination of higher concentrations of molybdenum.JBHeadridge et al studied 0.5M citric acid -0.025M sulfuric acid -0.05M thorium nitrate nitrate (pH3.5) medium polarographic wave [2], indicating that the molybdenum In this system there are two waves of Mo (Ⅵ → Ⅴ) and Mo (Ⅴ → Ⅲ) and the first wave of molybdenum is used to determine about 4% of the molybdenum in the niobium based alloy. The application of molybdenum ore analysis, has not yet seen the introduction of information.This paper studied the molybdenum in sulfuric acid - citric acid system in the second pole