News Column

Studies from Jilin University Yield New Information about Acrylates

June 27, 2014



By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Acrylates. According to news reporting originating from Changchun, People's Republic of China, by NewsRx correspondents, research stated, "A poly(butyl methacrylate-co-ethyleneglyceldimethacrylate) (poly(BMA-EDMA)) monolithic column was prepared with in situ polymerization method and modified with allylamine-beta-cyclodextrin (ALA-beta-CD) and nano-cuprous oxide (Cu2O). A polymer monolith microextraction method was developed with the modified monolithic column for the preconcentration of polychlorinated biphenyls combined with gas chromatography-electron capture detector."

Our news editors obtained a quote from the research from Jilin University, "Various parameters affecting the extraction efficiency were investigated and optimized. Under the optimum experimental conditions, we obtained acceptable linearities, low limits of detection, and good intra-day/inter-day relative standard deviations. Because of the hydrophobic properties of beta-CD and the porous nano structure of Cu2O, the enrichment capacity of the poly(BMA-EDMA) monolithic column was significantly improved. The extraction efficiency followed the order: poly(BMA-EDMA-ALA-beta-CD-Cu2O) > poly(BMA-EDMA-ALA-beta-CD) > poly(BMA-EDMA) > direct GC analysis. When applied to the determination of polychlorinated biphenyls in wine samples, low limits of detection (0.09 ngmL(-1)) were obtained under the preoptimized conditions (sample volume 1.0 mL, sample flow rate 0.1 mL min(-1), eluent volume 0.1 mL, and eluent flow rate 0.05 mL min-1). In addition, the present method was employed to determine polychlorinated biphenyls in red wine samples and the accuracy was assessed through recovery experiments."

According to the news editors, the research concluded: "The obtained recovery values were in the range of 78.8-104.1% with relative standard deviations less than 9.0%."

For more information on this research see: Preparation of poly(butyl methacrylate-co-ethyleneglyceldimethacrylate) monolithic column modified with beta-cyclodextrin and nano-cuprous oxide and its application in polymer monolithic microextraction of polychlorinated biphenyls. Journal of Chromatography A, 2014;1343():47-54. Journal of Chromatography A can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Chromatography A - www.elsevier.com/wps/product/cws_home/502688)

The news editors report that additional information may be obtained by contacting H.J. Zheng, Jilin University, Coll Chem, Changchun 130012, People's Republic of China. Additional authors for this research include Q.W. Liu and Q. Jia (see also Acrylates).

Keywords for this news article include: Asia, Alkenes, Changchun, Ethylenes, Methacrylates, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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