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近年来随着新络合剂的不断涌现,络合反应的种类和数量也逐渐增加,这为设计新的分析方法提供了有利的条件。在设计新的分析方法时,首先应当选择适当的滴定反应。 适合滴定分析的化学反应,应该具备以下几个条件; (一)反应必须定量地完成。即反应按一定的反应方程式进行,没有付反应,而且进行完全(通常要求达到99.9％左右)。这是定量计算的基础。 (二)反应能够迅速地完成。
In recent years, with the continuous emergence of new complexing agents, the type and amount of complexation reactions also gradually increase, which provides favorable conditions for the design of new analytical methods. When designing new analytical methods, you should first select the appropriate titration reaction. Suitable for chemical analysis of titration, should have the following conditions; (A) the reaction must be done quantitatively. That is, the reaction is carried out according to a certain reaction equation without any reaction and is complete (usually about 99.9% is required). This is the basis of quantitative calculation. (B) the reaction can be completed quickly.