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关于锗的极谱测定,过去一般采用 NH_4OH-NH_4Cl 等碱性介质中测定,但灵敏度不高,不适宜于矿石中微量锗的测定.而锗-邻苯二酚络合物在高氯酸介质中的吸附波则具有较高的灵敏度.我们在实验中观察到锗-邻苯二酚络合物在 pH 值为2.4的盐酸-氯化钾-乙酸介质中有更高的灵敏度,用示渡极谱可测至0.005微克/毫升的锗。铁、钛、钼、钒、铬、镉等都有不同程度的干扰,可在10N 的盐酸介质中,用四氯化碳萃取锗。个别
Ge polarographic determination of germanium, the past generally used NH4OH-NH4Cl and other alkaline medium determination, but the sensitivity is not high, not suitable for the determination of trace germanium ore, and germanium - catechol complex in perchloric acid medium In the adsorption of the wave has a higher sensitivity we observed in the experiment of germanium - catechol complex at pH 2.4 hydrochloric acid - potassium chloride - acetic acid medium has a higher sensitivity, Polarography measurable to 0.005 μg / ml germanium. Iron, titanium, molybdenum, vanadium, chromium, cadmium and so have different levels of interference, in 10N hydrochloric acid medium, the extraction of germanium with carbon tetrachloride. individual