【摘要】 依来铬紫B在六次甲基四胺-盐酸（pH 6.4）底液中还原,产生良好的还原波,E_a=-0.69V（vs.Hg）.加入Ni²⁺后,此波高降低,并在稍负的电位处出现一个尖峰形的新波E_b=-0.89V（vs.Hg）.其峰电流与镍的浓度在2×10^-8—2×10^oM范围内成正比。此波可用于测定镍。实验表明,该波属于络合吸附波。更多还原

【Abstract】 In a supporting electrolyte containing 1x10^-5M eriochrome violet B+0.05M （cH₂）₆N₄-HCl（pH6.4）, an adsorptive coplex wave of nickel-eriochrome violet B was obtained by single-sweep polarography. The Reak potential of the polarographic wave was -0.89V （vs.Hg）. The linear relationship between wave height and concentration, of. Ni²⁺ helds in the range of 2x10^-6—2M.This wave proved to be an adsorptive wave by several experiments.更多还原