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导言: 电分析技术由于广泛应用于溶液中各种成分的定性和定量分析,因而成为仪器分析的主要方法之一。电分析技术主要由三类组成:电位法,伏安法,和库伦法。其中电位法的用途最广,pH计几乎为每个实验室所必备,各种离子选择电极已被采用。而伏安法却是其中最年青的一种。它开始于1920年海洛夫斯基发明极谱法的时候,其后从里这引出了一系列的技术,其中有固体电极伏安法,电位扫描计时电流法(Potential Sweep chronoamperometry),以及包括运用交流、方波和脉冲技术的更完善成熟的极谱法。虽然极谱法是最著名的伏安技术,但溶出
Introduction: Electroanalytical techniques have become one of the main methods of instrumental analysis due to their wide range of applications in the qualitative and quantitative analysis of various components in solution. Electroanalytical techniques consist of three main groups: potentiometry, voltammetry, and coulometry. Which the most widely used potential method, pH meter is almost necessary for each laboratory, a variety of ion selective electrode has been used. Voltamme is one of the youngest among them. It started when Herovsky invented polarography in 1920, and from then on it came a series of techniques, including solid-state electrode voltammetry, potential sweep chronoamperometry, Use the more sophisticated and mature polarography with crossover, square wave and pulse techniques. Although polarography is the most famous voltammetry technique, it dissolves