论文部分内容阅读
本文发现在pH7～13的柠檬酸铵-氢氧化铵介质中,铋与新铜铁试剂生成的电活性络合物,在-0.47伏左右(VS.S.C.E)产生一灵敏的极谱吸附催化波。其催化电流与铋浓度在1.9×10~(-8)～4.8×10~(-6)M之间呈线性关系。适用于化探样及矿石中0.00x～0.00001%铋的测定。对催化波的性质进行了初步探讨。
In this paper, we found that the electroactive complex formed between bismuth and the new copper-iron reagent at pH7-13 in ammonium citrate-ammonium hydroxide produces a sensitive polarographic adsorption catalytic wave at about -0.47 V (VS.SCE) . The catalytic current has a linear relationship with the concentration of bismuth in the range of 1.9 × 10 -8 ~ 4.8 × 10 -6 M. For geochemical samples and ores 0.00x ~ 0.00001% bismuth determination. The catalytic wave properties were discussed.