【摘 要】
：
钒与铜铁试剂可形成VO(C_6H_5N_2O_2)_3的中性螯合物,在H_2SO_4-NaOAc体系中与辛可宁可形成一灵敏度较高的钒的络合催化极谱波。文献曾报道了该络合催化波在HOAc-NaOAc体系
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钒与铜铁试剂可形成VO(C_6H_5N_2O_2)_3的中性螯合物,在H_2SO_4-NaOAc体系中与辛可宁可形成一灵敏度较高的钒的络合催化极谱波。文献曾报道了该络合催化波在HOAc-NaOAc体系中的极谱行为,本文进一步研究和探讨了该络合催化波在H_2SO_4-NaOAc体系中的极谱行为,并拟定了矿物岩石中微量钒的分析程序。试验结果表明,该络合催化波具有良好的选择性。在pH=5.3的条件下,钒在0～4μg/25ml之间浓度与
Vanadium and copper and iron reagents can form a neutral chelate of VO (C_6H_5N_2O_2) _3. In H_2SO_4-NaOAc system, it can form a sensitive catalytic polarographic complex of vanadium with cinchonine. The literature has reported the polarographic behavior of the complex catalytic wave in the HOAc-NaOAc system. In this paper, the polarographic behavior of the complex catalytic wave in the H 2 SO 4 -OAc system was further studied and discussed. The trace vanadium Analysis program. The experimental results show that the complex catalytic wave has good selectivity. At pH = 5.3, vanadium concentration between 0-4μg / 25ml
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