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author:

Wu, F. (Wu, F..) [1] | Chen, J. (Chen, J..) [2] | Lu, W. (Lu, W..) [3] | Lin, Z. (Lin, Z..) [4] | Zhang, L. (Zhang, L..) [5]

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Scopus

Abstract:

A novel poly (1-hexadecene-co-trimethylolpropane trimethacrylate) coating was prepared and applied as solidphasemicroextraction (SPME) for analysis of pesticides in tea samples. This SPME coating was fabricated on the surface of fiber by in-situ copolymerization of 1-hexadecene and trimethylolpropane trimethacrylate, in the presence of the ternary porogen (cyclohexanol/1, 4-butanediol/water). Both the effects of porogen ratio and porogen composition on the SPME performance during the polymerization process were investigated. The application of the as-prepared coating was evaluated by extracting residual pesticides in tea samples. Some parameters affecting SPME efficiency such as extraction time, temperature, pH, ionic strength and desorption conditions were examined. Good linearity of the calibration curve was obtained in the range of 1.7-500 ng ml-1 with correlation coefficient (r) better than 0.9957. The detection limits (S/N = 3) for six pesticides were 0.5-5.0 ng ml-1 and the relative standard deviations (RSDs) of precision for one fiber, fiber-tofiber, and day-to-day were 7.0-10.8 %, 4.9-13.3 % and 5.5-12.6 %, respectively (n = 5). Recoveries obtained at spiked tea samples were 80.8-108.8 % for different analytes. The results validated the as-prepared coating had high extraction efficiency toward pesticides as well as good solvent resistant. © 2011 Bentham Science Publishers.

Keyword:

Highperformance liquid chromatography; Pesticide analysis; Poly (1-hexadecene-co-trimethylolpropane trimethacrylate) coating; Solid-phase microextraction; Tea analysis

Community:

  • [ 1 ] [Wu, F.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Analytical and Testing Center, Fuzhou University Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 2 ] [Wu, F.]College of Pharmacy, Fujian Medical University, Fuzhou, Fujian, 350004, China
  • [ 3 ] [Chen, J.]College of Pharmacy, Fujian Medical University, Fuzhou, Fujian, 350004, China
  • [ 4 ] [Lu, W.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Analytical and Testing Center, Fuzhou University Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 5 ] [Lu, W.]The Sport Science Research Center, Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 6 ] [Lin, Z.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Analytical and Testing Center, Fuzhou University Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 7 ] [Zhang, L.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Analytical and Testing Center, Fuzhou University Fuzhou University, Fuzhou, Fujian, 350002, China
  • [ 8 ] [Zhang, L.]The Sport Science Research Center, Fuzhou University, Fuzhou, Fujian, 350002, China

Reprint 's Address:

  • [Zhang, L.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Analytical and Testing Center, Fuzhou University Fuzhou University, Fuzhou, Fujian, 350002, China

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Source :

Current Analytical Chemistry

ISSN: 1573-4110

Year: 2011

Issue: 4

Volume: 7

Page: 341-348

1 . 0

JCR@2011

1 . 7 0 0

JCR@2023

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 0

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