多肽尿素中微量聚天门冬氨酸检测方法探讨  

DETERMINATION OF TRACE AMOUNT OF POLYASPARTIC ESTER IN POLYPEPTIDE UREA

作　　者：彭兴军[1] 刘昌敏[1] 胡桂萍[1] 

机构地区：[1]四川泸天化股份有限公司,四川泸州646300

出　　处：《大氮肥》2016年第1期65-67,共3页Large Scale Nitrogenous Fertilizer Industry

摘　　要：聚天门冬氨酸和季胺盐类阳离子表面活性剂DDBAC反应形成乳白色浑浊液,其中聚天门冬氨酸含量与溶液浊度成正比。通过检测试样溶液的浊度,用单点标准比较法测定多肽尿素中微量（0.02%~0.10%）聚天门冬氨酸含量,可用于多肽尿素生产过程中微量聚天门冬氨酸的控制检测。Polyaspartic ester reacts with quaternary amine cationic surface agent DDBAC to get milk white turbid solution, among which the concentration of polyaspartic ester is in direct proportion to the turbid- ity of the solution. By determining the turbidity of the sample, and using single point standard comparison method, trace amount of polyaspartic ester （0.02%-0.10%） in polypeptide urea can be determined.

关 键 词：多肽尿素 微量 聚天门冬氨酸 比浊法 

分 类 号：TQ441.41[化学工程—化学肥料工业]