Development and application of porous materials in low-cost supports towards improvement of sample preparation

Summary

In recent decades, porous materials have gained great attention both industrially and scientifically, presenting different and interesting applications in areas such as gas storage and separation, drug delivery systems, catalysis, among others. Moreover, these materials have received enormous attention in the field of Analytical Chemistry, being applied in the area of sample treatment techniques [1, 2] with the aim of developing sorbents that produce enhanced performance (high extraction efficiency as improved sensitivity and selectivity) analytical methodologies. On the other hand, the development and application of these sorbents must be in line with the principles of Green Analytical Chemistry and sustainability. [3, 4]. In this sense, the commitment to miniaturized strategies that incorporate new materials has promoted the establishment and development of various microextraction techniques that have successfully allowed the separation and pre-concentration of analytes in very complex matrices.

In this talk, different porous materials (polymeric monoliths, metal-organic frameworks, molecularly imprinted polymers, among others) prepared in different low-cost formats/supports (capillaries, micropipette tips, magnets, paper, 3D printed supports, etc.) devoted to be used as sustainable platforms in solid-phase microextraction techniques. Thus, the process of synthesis and characterization of these porous materials will be described, as well as their possible combination with other nanostructured materials (composites) in order to obtain materials with enhanced properties. In addition, some of the most representative analytical applications that use these materials in different low-cost formats will be described. Moreover, the future prospects offered by these materials in the field of sample treatment will be discussed.

References

1. E.V. Soares, Maciel, A.L. de Toffoli, E. Sobieski Neto, C.E. Domingues Nazario, F.M. Lanças, Trends Anal. Chem. 119 (2019) 115633.

2. M.R. Gama, F.R.P. Rocha, C.B.G. Bottoli, Trends Anal. Chem. 115 (2019) 39-51.

3. S. Armenta, S. Garrigues, M. de la Guardia, Trends Anal. Chem. 27 (2008) 497-511.

4. A.I. López-Lorente, F. Pena-Pereira, S. Pedersen-Bjergaard, V.G. Zuin, S.A .Ozkanh, E. Psillakis, Trends Anal. Chem. 148 (2022) 116530.