TY - JOUR
T1 - New materials and trends in sorbents for solid-phase extraction
AU - Augusto, Fabio
AU - Hantao, Leandro W.
AU - Mogollón, Noroska G.S.
AU - Braga, Soraia C.G.N.
PY - 2013/2
Y1 - 2013/2
N2 - In this article, we outline and discuss some of the most recent tendencies on the research related to novel sorbent materials for solid-phase extraction (SPE). Hemimicelles and admicelles are structures formed from solutions of ionic surfactants, which can be sorbed on the surfaces of active solids, resulting in sorbents capable of simultaneously extracting a wide range of analytes with extremely varied polarity. The performance of another important class of new SPE materials is based on molecular recognition, which mimics the selective or specific affinity of several biomolecules towards their target compounds: these sorbents include molecularly-imprinted materials, immunosorbents and aptamer-modified surfaces. Finally, there is also a growing interest on sorbents based on nanostructured materials (e.g., electrospun nanofibers and carbon nanotubes).
AB - In this article, we outline and discuss some of the most recent tendencies on the research related to novel sorbent materials for solid-phase extraction (SPE). Hemimicelles and admicelles are structures formed from solutions of ionic surfactants, which can be sorbed on the surfaces of active solids, resulting in sorbents capable of simultaneously extracting a wide range of analytes with extremely varied polarity. The performance of another important class of new SPE materials is based on molecular recognition, which mimics the selective or specific affinity of several biomolecules towards their target compounds: these sorbents include molecularly-imprinted materials, immunosorbents and aptamer-modified surfaces. Finally, there is also a growing interest on sorbents based on nanostructured materials (e.g., electrospun nanofibers and carbon nanotubes).
KW - Affinity
KW - Aptamer
KW - Carbon nanotube (CNT)
KW - Electrospun nanofiber (NF)
KW - Immunosorbent
KW - Ionic surfactant
KW - Molecular recognition
KW - Molecularly-imprinted polymer (MIP)
KW - Solid-phase extraction (SPE)
KW - Sorbent
UR - http://www.scopus.com/inward/record.url?scp=84873286108&partnerID=8YFLogxK
U2 - 10.1016/j.trac.2012.08.012
DO - 10.1016/j.trac.2012.08.012
M3 - Artículo de revisión
AN - SCOPUS:84873286108
SN - 0165-9936
VL - 43
SP - 14
EP - 23
JO - TrAC - Trends in Analytical Chemistry
JF - TrAC - Trends in Analytical Chemistry
ER -