为了快速测定铜氨液中总氨总酸含量,已经研究应用了EDTA甲醛法,硫脲掩蔽法,硫代硫酸钠掩蔽法,提馏法,蒸馏残液滴定法,及其它方法,但没有一个满意的快速测定法。因此探讨研究一种新的既快速又准确的测定方法很有必要。目前多数合成氨厂采用EDTA甲醛法,其主要缺点是①测定总氨总酸含量之前须先测定总铜含量,不适用于总氨总酸含量的单独测定;②须用EDTA络合掩蔽 In order to quickly determine total ammonia total acid content in copper ammonia solution, EDTA formaldehyde, thiourea masking, sodium thiosulfate masking, stripping, distillation residue titration, and other methods have been studied but none have been studied Satisfactory rapid assay. Therefore, it is necessary to explore a new method for both rapid and accurate determination. At present, the majority of ammonia plant using EDTA formaldehyde method, the main drawback is that the determination of total ammonia content must be determined before the total copper content is not applicable to total ammonia total acid content of a separate determination;