汞膜电极阳极解析法在海水分析中的应用——Ⅰ.海水中痕量铜的测定

• 机 构: 厦门大学化学系分析化学教研室
• 出 处: 厦门大学学报(自然科学版)
• 发表日期: 1965年02期
• 关键词: 汞膜电极 海水 痕量铜 阳极 海水分析 对电极 底液 萃取分光光度法 峰电流 分光光度法

本工作提出用铂球镀银沾汞的汞膜电极阳极解析法测定海水中痕量铜,对电极的制备、性能及测定灵敏度等作了探讨. 在0.1N乙二胺与0.1N乙二胺硫酸盐的去铜海水底液中,应用汞膜电极在外加电压为1.0伏特F电解浓集15—20分钟,在一0.4至-0.1伏特间进行阳极溶出,成功地测定了浓度为10~(-6)—10~(-8)M的铜,回收误差为10％左右.

In this work, the determination of trace amount of copper in seawater by the anodic analysis of mercury membrane electrode with platinum-silver-plated mercury electrode was discussed, and the preparation, properties and determination sensitivity of the electrode were discussed.In 0.1N ethylenediamine and 0.1N ethylenediamine Sulfate to the copper in the sea water, the use of mercury membrane electrode at an applied voltage of 1.0 volt F electrolysis concentration of 15-20 minutes, between 0.4 to -0.1 volts anode dissolution, the successful determination of the concentration of 10 ~ ( -6) -10 ~ (-8) M copper recovery error of about 10%.