电化学-电感耦合等离子体原子发射光谱联用技术及其在金属腐蚀研究中的应用

A Novel Technique of Electrochemical-inductively Coupled Plasma Atomic Emission Spectrometry and Its Application in Corrosion Research

为了提高金属材料腐蚀理论研究的广度和深度,近年来,一种电化学-电感耦合等离子体原子发射光谱联用技术应运而生。在该技术中,电感耦合等离子体原子发射光谱仪被耦联到自制电化学流动池的下游,用以跟踪溶解在腐蚀溶液中的腐蚀产物的浓度瞬变,使实时测定金属电极元素溶解速率成为可能。本文简要介绍了该技术的工作原理和发展,并对目前该技术在金属腐蚀研究中的应用进行了总结,指出了该技术存在的问题和今后的发展方向。

To improve breadth and depth of corrosion theory for metal materials,a combined technique of electrochemical-inductively coupled plasma atomic emission spectrometry(ICP-OES)was developed in recent years.In this technique,an inductively coupled plasma atomic emission spectrometer was coupled to the downstream of a home-built electrochemical flow cell to track the concentration transient of the corrosion products dissolved in the corrosion medium,so that the elemental dissolution rates of metal electrode could be determined in real time.The working principles and the development of this technology were introduced briefly and the applications of this technology in metal corrosion research were summarized at present.Finally,the existing problems and future directions for development of this technique were pointed out.