Determination of Lead at ppb Levers by a Catalytic Polarographic Method
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Abstract:
In the presence of ethyl alcohol, there exists a sensitive polarographic ca- talytic wave of the complex formed by Pb-Kl- V (IV)-ascorbic acid. The wave is available for the determination of lead within the range of 1-2ug/ml. The detection limit of lead is 0.0005ug/ml, the wave peak appears at -0.30v in 003M hydrochoric acid medium.
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俞德先,1984,岩石中痕量铅的催化极谱测定—乙醇-碘化钾-钒(Ⅳ)-抗坏血酸-盐酸体系[J].岩石矿物学杂志,3(2):165~168.,1984,Determination of Lead at ppb Levers by a Catalytic Polarographic Method[J]. Acta Petrologica et Mineralogica,3(2):165~168.
