脲铵氮肥中氨态氮含量检测方法的讨论  

Discussion on the Detection Method of Ammonia Nitrogen Content in Urea Ammonium Nitrogen Fertilizer

作　　者：李国美 Li Guomei(Yunnan Tianteng Chemical Co.,Ltd.,Chuxiong 675000,China)

机构地区：[1]云南天腾化工有限公司,云南楚雄675000

出　　处：《云南化工》2023年第11期79-81,共3页Yunnan Chemical Technology

摘　　要：利用蒸馏滴定法对脲铵氮肥中的氨态氮进行了测定。通过条件选择及方法讨论,分别对氯化铵、农用氯化铵、硫酸铵进行了铵态氮含量测定。结果表明,蒸馏法测定结果回收率在96.5%~98.8%间,与甲醛法对比偏差≤0.2%,分析结果符合分析测定要求。This study used distillation titration method to determine the ammonium nitrogen content in urea ammonium nitrogen fertilizer.Through condition selection and method discussion,the ammonium nitrogen content was determined for ammonium chloride,agricultural ammonium chloride,and ammonium sulfate,respectively.The recovery rate of the distillation method is between 96.5%and 98.8%,with a deviation of≤0.2%compared to the formaldehyde method.The analysis results meet the requirements for analysis and determination.

关 键 词：蒸馏滴定 复合肥 氨态氮 分析测定 

分 类 号：TQ440[化学工程—化学肥料工业]