Analytical and Bioanalytical Chemistry

, Volume 393, Issue 3, pp 1055–1062 | Cite as

Preparation of highly selective solid-phase extractants for Cibacron reactive dyes using molecularly imprinted polymers

  • Yahya S. Al-DegsEmail author
  • Adnan S. Abu-Surrah
  • Khalid A. Ibrahim
Original Paper


Selective polymeric extractants were prepared for preconcentration of Cibacron reactive red dye, a dye that is often applied with Cibacron reactive blue and Cibacron reactive yellow for dyeing of fabrics. The best extractant was fabricated (in chloroform) using methacrylic acid (as monomer), ethylene glycol dimethacrylate (as crosslinker), AIBN (as initiator for polymerization), and red dye as template molecule, with a molar stoichiometric ratio of 8.0:40.0:2.5:0.63, respectively. The structure of the molecularly imprinted polymer (MIP) was robust, and resisted dissolution up to 260 °C. Compared with the un-imprinted polymer, the imprinted product has a large specific surface area which improved its adsorption capacity. The effect of imprinting was obvious from the adsorption capacity measured at pH 4 for red dye (the imprinted molecule), which was increased from 24.0 to 79.3 mg g−1 after imprinting. Equilibrium adsorption studies revealed that the dye-imprinted-polymer enables efficient extraction of red dye even in the presence of blue and yellow dyes which have similar chemical natures to the red dye. The selectivity coefficients S red dye/dye, were 13.9 and 17.1 relative to the yellow and blue dyes, respectively. The MIP was found to be effective for red dye preconcentration, with a preconcentration factor of 100, from tap water and treated textile wastewater. The factors affecting extraction of red dye by the MIP were studied and optimized. Under the optimized extraction conditions, red dye was selectively quantified in the presence of other competing dyes at a concentration of 20 μg L−1 from different water systems with satisfactory recoveries (91–95%) and RSD values (∼5.0%).


Reactive dyes Separation Molecularly imprinted polymers Solid-phase extraction 



Financial support from the Deanship of Academic Research/The Hashemite University is highly appreciated. The authors would like to thank Mr Basem Nasrallah for running the TGA analysis of the polymers.


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Yahya S. Al-Degs
    • 1
    Email author
  • Adnan S. Abu-Surrah
    • 1
  • Khalid A. Ibrahim
    • 2
  1. 1.Department of ChemistryHashemite UniversityZarqaJordan
  2. 2.Al-Hussein Bin Talal UniversityFaculty of Mining and Environmental Engineering, Department of Chemical EngineeringMa’anJordan

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