K_2O为氨合成催化剂中的助催剂,其含量多少直接影响催化剂的活性及其他性质,故K_2O含量的测定十分重要。以往常用的测定方法是重量法和火焰光度法。重量法操作麻烦;火焰光度法准确度不高,且共存离子常有干扰。 K2O is a catalyst for ammonia synthesis promoter, its content directly affects the activity of the catalyst and other properties, so the determination of K2O content is very important. In the past commonly used determination method is gravimetric method and flame photometry. Gravimetric method is cumbersome; the accuracy of flame photometric method is not high, and co-existing ions often interfere.