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Se Pu


Title:[Research of polymer coating in solid phase microextraction]
Author(s):Zhang D; Wu C; Ai F;
Address:"Department of Chemistry, Wuhan University, Wuhan, 430072"
Journal Title:Se Pu
Year:1999
Volume:17
Issue:1
Page Number:10 - 13
DOI:
ISSN/ISBN:1000-8713 (Print) 1000-8713 (Linking)
Abstract:"The solid phase microextraction (SPME) is a new extraction technique which has been developed rapidly in 1990s. It is a fast, simple, solventless and sensitive method for analyzing environmental samples. However, the solid phase materials of SPME are relatively limited. This paper presents the research work on a new type of solid phase, polymethylvinylsiloxane (PMVS), used in SPME. The phase with 1% vinyl content could be used in light curing. The PMVS solution was coated on the surface of silica fiber and was quickly cured by UV. Two fibers with 87 microns and 44 microns thick PMVS coatings were prepared. They were compared with commercial polymer coating SPME fibers through Headspace SPME Gas Chromatograph (HS-SPME-GC). The adsorption and desorption kinetics of PMVS were studied. The HS-SPME system was optimized and the differences between HS-SPME and HS were investigated as well. The results indicated that PMVS is efficient in extracting volatile and semi-volatile organic compounds and PMVS showed the high thermostability and easy-coating properties. The detection limit of SPME using 88 microns PMVS coating was about 1-5 micrograms/L"
Keywords:
Notes:"PubMed-not-MEDLINEZhang, D Wu, C Ai, F chi English Abstract China 2003/01/29 Se Pu. 1999 Jan; 17(1):10-3"

 
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