亚硝酸钙溶液中硝酸根含量的测定  

Determination of nitrate content in calcium nitrite solution

作　　者：戚凤英 

机构地区：[1]云南解化集团有限公司,云南开远661600

出　　处：《中氮肥》2005年第1期58-60,共3页M-Sized Nitrogenous Fertilizer Progress

摘　　要：氯化铵法测定亚硝酸钙溶液中硝酸根含量时 ,影响测定结果准确性的因素主要为 :加热微沸时间和诱导反应。消除影响因素后加标回收率达 96 6 0 %以上 ,与成品甲醇法相比具有操作简便、快速的优点 。Controlling the heating time for removing NO - 2 and inhibiting induced reaction are the main factors affecting the accuracy of determination when using the method of ammonium chloride for the determination of nitrate content in calcium nitrite solution. After getting rid of the influence factors, the recovery can reach 96.60% above. In comparison with methanol method, ammonium chloride method has advantages such as fast, simple and easy operation, meeting the requirement for the determination.

关 键 词：亚硝酸钙 中控分析 甲醇法 硝酸根 溶液 氯化铵 成品 含量 诱导 测定结果 

分 类 号：TQ132.32[化学工程—无机化工]