caa a22 4500 445802529 CHVBK 20180317145146.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10337-011-2015-5 doi (NATIONALLICENCE)springer-10.1007/s10337-011-2015-5 RP-LC Determination of Residual Monomers in Polycarboxylate Superplasticizers [Elektronische Daten] [Jiaheng Lei, Xiaodi Du, Anfu Zhang, Hui Wu] A procedure was developed for the determination of residual monomers in polycarboxylate superplasticizer by reversed-phase high performance liquid chromatography. Seven kinds of residual monomers were quantitatively determined on a SinoChrom ODS-BP (C18) column and UV detector at 205nm. The mobile phases which were used to determine micromolecular monomers were composed of acetonitrile and phosphate buffer solution (0.05molL−1, pH=3) in the ratio of 8:92 (v/v). While the mobile phases for long side-chain monomers testing were composed of acetonitrile and phosphate buffer solution (0.05molL−1, pH=6.5) in the ratio of 40:60 (v/v). The linear response ranged from 4.0×10−6-2.0×10−3molL−1. The detection limit was 0.12×10−5-0.8×10−5molL−1. Determination of real samples showed that relative standard deviation of high conversion rate samples was 3.1-8.7% and standard addition recovery ratio was 91.5-102.8%. While the relative standard deviation of low conversion rate samples was less than or close to 1% and the standard addition recovery ratio was 96.3-103.1%. Springer-Verlag, 2011 Column liquid chromatography nationallicence Polycarboxylate superplasticizer nationallicence Residual monomer nationallicence Concrete admixture nationallicence Lei Jiaheng Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut Du Xiaodi Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut Zhang Anfu Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut Wu Hui Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut Chromatographia Springer-Verlag 73/11-12(2011-06-01), 1131-1136 0009-5893 73:11-12<1131 2011 73 10337 https://doi.org/10.1007/s10337-011-2015-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10337-011-2015-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lei Jiaheng Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut NATIONALLICENCE 700 1- Du Xiaodi Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Anfu Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut NATIONALLICENCE 700 1- Wu Hui Department of Chemistry, Wuhan University of Technology, 430070, Wuhan, Hubei, People's Republic of China aut NATIONALLICENCE 773 0- Chromatographia Springer-Verlag 73/11-12(2011-06-01), 1131-1136 0009-5893 73:11-12<1131 2011 73 10337 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer