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Number of results
2014 | 2 | 1 |

Article title

Improved molecularly imprinted polymer grafted
to porous polyethylene frits for the solid-phase
extraction of thiabendazole from citrus sample


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In this paper, the improvement over a novel
format for selective solid-phase extraction based on a
molecularly imprinted polymer (MIP) is described. A small
amount of MIP has been synthesized within the superficial
pores of commercial polyethylene (PE) frits and attached
to its surface using benzophenone (BP), a photo-initiator
capable to start the polymerization from the surface of the
support material. Key properties affecting the obtainment
of a proper polymeric layer, such as polymerization
time and kind of cross-linker were optimized. Prepared
composite material was applied to the SPE of TBZ in real
samples extracts, showing an impressive clean-up ability.
Calibrations showed good linearity in the concentration
range of 0.05–5.00 μg g-1, referred to the original solid
sample, and the regression coefficients obtained were
greater than 0.998. The calculated detection limit was 0.01
μg g-1, low enough to satisfactory analysis of TBZ in real
samples. Mean recoveries were about 70 % at different
concentration levels with RSDs always ranged below 15%
in all the cases.







Physical description


1 - 12 - 2014
27 - 5 - 2015
28 - 4 - 2015


  • Departamento de Medio
    Ambiente, INIA, Carretera de A Coruña km 7.5, 28040 Madrid, Spain
  • Departamento de Medio
    Ambiente, INIA, Carretera de A Coruña km 7.5, 28040 Madrid, Spain


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