编辑同志: 我给你们写一封信,提出一条关于改进定氮康维皿的建议。 康维皿(又名定氮皿或扩散皿)是测定氨态氮的最简单的仪器,也能测定易挥发易被吸收的其它气体,它操作简便,特别适于同时测定几十个样品,结果的重现性好。现有的康维皿外室无隔板(图1),化验人员操作时,先要 Editor’s Comrade: I wrote a letter to you in proposing a suggestion to improve the definition of Nitrogen. Compressor (also known as fixed nitrogen dish or diffusion dish) is the most simple instrument for ammonia nitrogen determination, but also easy to be measured volatile other gases easily absorbed, it is easy to operate, especially suitable for the simultaneous determination of dozens of samples, Good reproducibility of the results. The existing Kangwulan room without partition (Figure 1), laboratory personnel, the first