title: Selective separation of deltamethrin by molecularly imprinted polymers using a β-cyclodextrin derivative as the functional monomer.
abstract: A deltamethrin-imprinted polymer (MIP(1)) was prepared using bis(-6-O-butanediacid monoester)-β-cyclodextrin (BBA-β-CD) as the functional monomer and toluene 2,4-diisocyanate (TDI) as the cross-linker. In comparison to the molecularly imprinted polymer where β-CD was applied as the functional monomer (MIP(2)), MIP(1) showed a higher specific binding capacity (ΔC(P)) and an improved imprinting factor (IF) for deltamethrin. The selective recognition experiments demonstrated that compared to MIP(2), MIP(1) could better recognize its template over other substrates that had similar chemical structures. The solid phase extraction (SPE) of deltamethrin using MIP(1) as the adsorbent was further investigated. The recoveries of the molecularly imprinted solid phase extraction (MISPE) column for deltamethrin were 83.2-93.4% with relative standard deviations (RSD) of 2.03-6.19%. The method has been successfully applied to the enrichment of trace deltamethrin from real water samples.
authors: Department of Chemistry and Material Science, Hengyang Normal University, Key Laboratory of Functional Organometallic Materials, College of Hunan Province, Hengyang, China. xuzhifenghw@163.com
authors: Zhi F
authors: ZF
authors: Xu
authors: Ge
authors: G
authors: Wen
authors: Dai Z
authors: DZ
authors: Kuang
authors: Fu X
authors: FX
authors: Zhang
authors: Si P
authors: SP
authors: Tang
mesh_terms: D000327:Adsorption; D054802:Molecular Imprinting; D009570:Nitriles / Q000737:chemistry / Q000302:isolation & purification*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D011722:Pyrethrins / Q000737:chemistry / Q000302:isolation & purification*; D052616:Solid Phase Extraction / Q000295:instrumentation / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D009570:Nitriles; D011108:Polymers; D011722:Pyrethrins; D014874:Water Pollutants, Chemical; D047392:beta-Cyclodextrins; C017180:decamethrin