高塔复混(合)肥中缩二脲含量检测方法初步研究  

Preliminary study on detection method of biuret content in compound fertilizer by tower granulation

作　　者：古荣鑫 潘芹 陈迪荣 张广忠 王臣 

机构地区：[1]史丹利化肥股份有限公司,山东临沂276700

出　　处：《磷肥与复肥》2016年第2期30-32,36,共4页Phosphate & Compound Fertilizer

基　　金：2013年山东省自主创新专项(2013CXC80204)农业用功能型海洋生物开发关键技术集成与示范

摘　　要：采用反相高效液相色谱法分析高塔复混（合）肥中的缩二脲,并与紫外分光光度法进行比较。研究结果显示,缩二脲保留时约为1.470 min,测定标准曲线线性相关系数为0.999 5,测定样品平均回收率100.1%,变异系数为0.70%;测定结果与紫外分光光度法测定结果相符,测定差异率仅为-0.05%-0.04%。高效液相色谱法操作简单、检测快速、测定重现性好,检测结果准确,可应用于复混肥生产过程中缩二脲的控制,特别是含尿素原料的高塔复混肥生产。The content of biuret in compound fertilizer by tower granulation is determined by reversed-phasehigh- performance liquid chromatography, and comparing with ultraviolet spectrophotometry. The results showthat, when biuret reserves of about 1.470 min, the linearly dependent coefficient of standard curve is 0.999 5,the average recovery rate of sample is 100.1%, the variation coefficient is 0.70%; The determination results arein conformity with ultraviolet spectrophotometry determination results, the difference rate of two methods isonly-0.04%- 0.05%. Reversed-phase high-performance liquid chromatography determination is simple, fast,good reproducibility, test results are accurate and can be used in the process of biuret control in compoundfertilizer production, especially the tower containing urea raw material compound fertilizer production.

关 键 词：复混肥料 高效液相色谱 缩二脲 检测 

分 类 号：TQ444[化学工程—化学肥料工业]