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近年来有机试剂应用于微量定性定量分析方面有了大的进展。研究一种既有选择性而灵敏度又高的试剂,成为化学分析的主要目标。微量氰化物的检验,不论在厂礦空气或在食物药品等的检验都是很重要的。下列有关氰化物检验的文献(1906～1956)经整理分为四种主要方法,供给从事这项检验工作者一些参考资料。一、变色反应方法1.氰化铜与水作用的反应这种颜色反应是由于生成的氰化铜与水作用后产生氧气,加入颜料为氧所氧化而引起了一系列的颜色反应。(1)氢氰酸、硫酸铜与N二甲氨基安替比林
In recent years, there has been great progress in the application of organic reagents to trace qualitative and quantitative analysis. To study a selective and sensitive reagent has become the main target of chemical analysis. Trace cyanide test, whether in the air factory or in food and drug testing is very important. The following literature on cyanide testing (1906 ~ 1956) is organized into four main methods, providing some reference materials for the inspection workers. First, the color reaction method 1. The reaction of copper cyanide and water This color reaction is generated due to the action of copper cyanide and water after the oxygen, adding pigments for the oxidation of oxygen caused a series of color reaction. (1) hydrocyanic acid, copper sulfate and N-dimethylaminoantipyrine