Determination of Residual Monomers in Polycarboxylate Superplasticizer Using High Performance Liquid Chromatography
Determination of Residual Monomers in Polycarboxylate Superplasticizer Using High Performance Liquid Chromatography作者机构:Department of ChemistryWuhan University of Technology
出 版 物:《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报(材料科学英文版))
年 卷 期:2011年第26卷第3期
页 面:439-442页
核心收录:
学科分类:08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0813[工学-建筑学] 0702[理学-物理学]
主 题:polycarboxylate superplasticizer monomer HPLC copolymerization
摘 要:A procedure was developed for the determination of residual monomers in polycarboxylate superplasticizer (PCs) by reversed-phase high performance liquid chromatography (RP-HPLC).Four kinds of residual monomers were well separated and determined on a SinoChrom ODS-BP (C18) column with mobile phases composed of acetonitrile and phosphate buffer *** monomers were detected by UV detector at 205 nm and quantitatively analyzed with an external standard *** those residual monomers,the linear response ranged from 4.0×10-6 mol·L-1 to 2.0×10-3 mol·*** determination limit of acrylic acid,sodium methylallyl sulfonate and 2-Acrylamido-2-methylpropane sulfonic acid was 0.02×10-5 mol·L-1,while that of methoxy-polyethylene glycol monoacrylate was 0.1×10-5 mol·*** relative standard deviation (RSD) of high concentration samples was less than 1%,while that of the low concentration samples was between 1%-4%.The standard (additional) recovery ratio was 97.4% -104.2%.