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美国矿山局目前致力于提高矿物浮选技术．在浮选控制中经常忽略的变量是氧化还原电位。本文论述用控制氧化还原方法从黄铜矿中分离辉钼矿．实验室试验表明氧化还原电位比捕收剂的添加对产品质量有更大的作用．在泡沫浮选中必须重视传感器在矿浆中测量和控制的可靠性。美国矿山局研究了一种自动去除结垢和恢复金电极的氧化还原测量功能的方法。将污浊的电极阳极极化到相对于Ag／AgCl参比电极1．2V以去除结垢，然后电极用简单快捷的电位动力学方法处理到重新建立电化学平衡。在实验室试验中，用这一方法在大约十分钟之内从金电极去除石灰沉淀并将电极重新调整到使用状态．在工厂，这一方法使操作者不再需要手工抛光电极，并提高了氧化还原电位测量的可靠性。本文介绍了一种便宜的自动化仪表用来调整在工厂安装的电极。
US Bureau of Mines is currently working to improve mineral flotation technology. The variable that is often overlooked in flotation control is the redox potential. This paper deals with the separation of molybdenite from chalcopyrite by a controlled redox method. Laboratory tests show that the addition of redox potential to collectors has a greater effect on product quality. In the froth flotation, attention must be paid to the reliability of the sensor’s measurement and control in the slurry. The U.S. Bureau of Mines has investigated a method for automatically removing scale and restoring the redox measurement capabilities of gold electrodes. The dirty electrode was anodically polarized to 1.2V relative to the Ag / AgCl reference electrode to remove fouling, and the electrode was then treated with a simple and quick potentiodynamic method to reestablish the electrochemical equilibrium. In laboratory tests, this method removes the lime deposits from the gold electrodes in about ten minutes and readjusts the electrodes to the condition of use. In the factory, this method eliminates the need for the operator to polish the electrodes by hand and increases the reliability of the redox potential measurement. This article describes a cheap automated instrument used to adjust the electrode installed in the factory.