本文引用四乙撑五胺,彻底地革掉了经典法双硫腙比色测痕量错原用的掩蔽剂、剧毒药品氰化物,有益于维护操作人员的健康与消除可能导致的公害。属于关键性问题的四乙撑五胺的适宜用量,文中提供了探索途径和其采用量并介绍了现市售三级纯四乙撑五胺溶液浓度的标定与将它精制成固体纯盐的方法以利于用量的控制和使用的方便。本方法准确快速,操作简便,能满足电镍以及电钴生产中分析痕量铅的需要。 This paper quotes tetraethylene pentamine, completely abolished the classic method of measuring dithizone colorimetric mistakes the masking agent, toxic chemicals cyanide, beneficial to maintain the health of operators and eliminate the possible public nuisance. Which is a key issue of tetraethylene pentamine, the amount of exploration provided in this article and its use and the introduction of the current market three pure tetraethylene pentamine solution concentration calibration and purification of it into a solid salt Method to facilitate the control of the amount and ease of use. The method is accurate and rapid, easy to operate, and can meet the needs of trace nickel in electro-nickel and electro-cobalt production.