Quercetin functionalized Merrifield´s resin by microwave-assisted Solid Phase Organic Synthesis. Preliminary study of the retention of Pb(II). A new material for enrichment of Pb(II)

Authors

  • Markel Denet Luaces-Alberto Universidad de la Habana, La Habana, Cuba
  • Arístides Camilo Valdés-González Laboratorio Universitario de Caracterización y Estructura de la Sustancia (LUCES). Instituto de Ciencia y Tecnología de los Materiales (IMRE). La Habana, Cuba
  • Carlos Ariel Alonso-Vilches Universidad de la Habana, La Habana, Cuba
  • Liván Lázaro Alba-Gutierrez Instituto Cubano de Investigaciones de los Derivados de la Caña de Azúcar (ICIDCA), Habana, Cuba
  • Soane Fernandez-Puig Laboratorio Universitario de Caracterización y Estructura de la Sustancia (LUCES). Instituto de Ciencia y Tecnología de los Materiales (IMRE). La Habana, Cuba
  • Ana María Gutiérrez-Carreras Universidad Complutense de Madrid

Abstract

This work shows the immobilization of quercetin on Merrifield resin by microwave-assisted Solid Phase Organic Synthesis (SPOS) for use in the recognition and preconcentration of Pb(II). Characterization of the modified resin by IR spectroscopy as well as by optical and scanning electron microscopy corroborated the occurrence of the immobilization reaction and the morphological changes in the resin properties compared to the original one. The performed characterization and potentiometric titrations showed that a new material was obtained, with conversion yields of >99 % and the acid character of the modified resin, which was found to be 8.4 mmol g-1 resin. In addition, preliminary essays using modified resin exhibited high Pb(II) retention capacity [620 mg(Pb) /g (modified resin)] in a biphthalate buffer with pH 4.5. The time to establish equilibrium was <30 s with retention of 97.9 ± 0.5 % and recovery of 100.4 ± 3,4 % with 6 mol L-1 HNO3.

Keywords: Merrifield’s resin, quercetin, sorbent material for Pb(II), Organic Solid Phase Synthesis, microwave.

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Published

2017-06-09

How to Cite

Luaces-Alberto, M. D., Valdés-González, A. C., Alonso-Vilches, C. A., Alba-Gutierrez, L. L., Fernandez-Puig, S., & Gutiérrez-Carreras, A. M. (2017). Quercetin functionalized Merrifield´s resin by microwave-assisted Solid Phase Organic Synthesis. Preliminary study of the retention of Pb(II). A new material for enrichment of Pb(II). Revista Cubana De Química, 29(2), 229–242. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/2502

Issue

Vol. 29 No. 2 (2017)

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Artículos

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