PMID- 17328901 OWN - NLM STAT- MEDLINE DCOM- 20070801 LR - 20090115 IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 1147 IP - 1 DP - 2007 Apr 13 TI - Novel monolithic poly(phenyl acrylate-co-1,4-phenylene diacrylate) capillary columns for biopolymer chromatography. PG - 46-52 AB - Monolithic capillary columns were prepared by thermally initiated free radical polymerisation of phenyl acrylate (PA) and 1,4-phenylene diacrylate (PDA) in the confines of 200 microm I.D. fused silica capillaries. Polymerisation was performed in the presence of 2-propanol and tetrahydrofuran (THF) as inert diluents (porogens), using alpha,alpha'-azoisobutyronitrile (AIBN) as initiator. Morphology and porosity of the resulting monoliths were comprehensively studied by scanning electron microscopy (SEM), mercury intrusion porosimetry and inverse size-exclusion chromatography (ISEC). The novel poly(phenyl acrylate-co-1,4-phenylene diacrylate) (PA/PDA) monoliths showed high mechanical stability and were successfully applied to the separation of proteins and oligodeoxynucleotides, employing reversed-phase (RP) and ion-pair reversed-phase (IP-RP) conditions, respectively. Maximum loading capacities for cytochrome c and d(pT)(16) were evaluated and found to be in the region of 200 fmol. Batch-to-batch reproducibility was determined for three independently prepared PA/PDA monolithic capillary columns. Relative standard deviations (RSDs) of retention time (t(R)) of 0.7-1.6% for proteins and 0.2-2.5% for d(pT)(12-18) proved high reproducibility of the PA/PDA supports. FAU - Bisjak, Clemens P AU - Bisjak CP AD - Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innrain 52a, 6020 Innsbruck, Austria. FAU - Lubbad, Said H AU - Lubbad SH FAU - Trojer, Lukas AU - Trojer L FAU - Bonn, Guenther K AU - Bonn GK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070214 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Acrylates) RN - 0 (Biopolymers) RN - 0 (Free Radicals) RN - 0 (Nucleic Acids) RN - 0 (Polymers) RN - 0 (Proteins) RN - 0 (poly(phenyl acrylate-co-1,4-phenylene diacrylate)) SB - IM MH - Acrylates/*chemical synthesis/chemistry MH - Biopolymers/*isolation & purification MH - Chromatography, High Pressure Liquid/*classification MH - Free Radicals/chemistry MH - Microscopy, Electron, Scanning MH - Molecular Structure MH - Nucleic Acids/isolation & purification MH - Permeability MH - Polymers/*chemical synthesis/chemistry MH - Porosity MH - Proteins/isolation & purification MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Spectrophotometry, Ultraviolet EDAT- 2007/03/03 09:00 MHDA- 2007/08/02 09:00 CRDT- 2007/03/03 09:00 PHST- 2006/11/28 00:00 [received] PHST- 2007/02/06 00:00 [revised] PHST- 2007/02/12 00:00 [accepted] PHST- 2007/03/03 09:00 [pubmed] PHST- 2007/08/02 09:00 [medline] PHST- 2007/03/03 09:00 [entrez] AID - S0021-9673(07)00283-X [pii] AID - 10.1016/j.chroma.2007.02.027 [doi] PST - ppublish SO - J Chromatogr A. 2007 Apr 13;1147(1):46-52. doi: 10.1016/j.chroma.2007.02.027. Epub 2007 Feb 14.