MilliporeSigma
  • Home
  • Search Results
  • Ordered mesoporous carbon/Nafion as a versatile and selective solid-phase microextraction coating.

Ordered mesoporous carbon/Nafion as a versatile and selective solid-phase microextraction coating.

Journal of chromatography. A (2014-09-25)
Jingbin Zeng, Cuiying Zhao, Jingjing Chen, Fazle Subhan, Liwen Luo, Jianfeng Yu, Bingwen Cui, Wei Xing, Xi Chen, Zifeng Yan
ABSTRACT

In this study, ordered mesoporous carbon (OMC) with large surface area (1019m(2)g(-1)), uniform mesoporous structure (pore size distribution centering at 4.2nm) and large pore volume (1.46cm(3)g(-1)) was synthesized using 2D hexagonally mesoporous silica MSU-H as the hard template and sucrose as the carbon precursor. The as-synthesized OMC was immobilized onto a stainless steel wire using Nafion as a binder to prepare an OMC/Nafion solid-phase microextraction (SPME) coating. The extraction characteristics of the OMC/Nafion coating were extensively investigated using a wide range of analytes including non-polar (light petroleum and benzene homologues) and polar compounds (amines and phenols). The OMC/Nafion coating exhibited much better extraction efficiency towards all selected analytes than that of a multi-walled carbon nanotubes/Nafion coating with similar length and thickness, which is ascribed to its high surface area, well-ordered mesoporous structure and large pore volume. When the OMC/Nafion coating was used to extract a mixture containing various kinds of analytes, it possessed excellent extraction selectivity towards aromatic non-polar compounds. In addition, the feasibility of the OMC/Nafion coating for application in electrochemically enhanced SPME was demonstrated using protonated amines as model analytes.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Activated Charcoal Norit®, Norit® SX ultra, from peat, corresponds U.S. Food chemicals codex (3rd Ed.), steam activated and acid washed, highly purified, powder
Sigma-Aldrich
Activated Charcoal Norit®, Norit® PK 1-3, from peat, steam activated, granular
Sigma-Aldrich
Activated Charcoal Norit®, Norit® RB3, for gas purification, steam activated, rod
Sigma-Aldrich
Activated Charcoal Norit®, Norit® SX2, powder, from peat, multi-purpose activated charcoal, steam activated and acid washed
Sigma-Aldrich
Activated Charcoal Norit®, Norit® CA1, wood, chemically activated, powder
Sigma-Aldrich
Activated Charcoal Norit®, Norit® GAC 1240W, from coal, for potable water processing, steam activated, granular
Supelco
Activated Charcoal Norit®, Norit® RBAA-3, rod
Sigma-Aldrich
Activated charcoal, DARCO®, 20-40 mesh particle size, granular
Sigma-Aldrich
Activated charcoal, DARCO®, −100 mesh particle size, powder
Sigma-Aldrich
Activated charcoal, Norit® ROW 0.8 SUPRA, pellets
Sigma-Aldrich
Activated charcoal, DARCO®, 4-12 mesh particle size, granular
Sigma-Aldrich
Activated charcoal, DARCO®, 12-20 mesh, granular
Sigma-Aldrich
Activated charcoal, untreated, granular, 20-60 mesh
Sigma-Aldrich
Activated charcoal, acid-washed with phosphoric and sulfuric acids
Sigma-Aldrich
Activated Charcoal, meets USP testing specifications
Sigma-Aldrich
Activated charcoal, 4-14 mesh, granular, Norit® PK 3-5
Sigma-Aldrich
Activated charcoal, untreated, granular, 8-20 mesh
Sigma-Aldrich
Activated charcoal, DARCO® KB-G
Sigma-Aldrich
Activated charcoal, acid-washed with hydrochloric acid
Sigma-Aldrich
Activated charcoal, untreated, granular, ≤5 mm
Sigma-Aldrich
Activated charcoal, powder, -100 particle size (mesh), decolorizing
Sigma-Aldrich
Activated charcoal, suitable for cell culture, suitable for plant cell culture
Supelco
Activated charcoal, suitable for GC
Supelco
Activated charcoal, powder
Carbon, foil, not light tested, 300x300mm, thickness 0.075mm, flexible graphite, 99.8%
Carbon, foil, 250x250mm, thickness 0.5mm, flexible graphite, 99.8%
Carbon, foil, 150x150mm, thickness 0.5mm, flexible graphite, 99.8%
Carbon, foil, 25x25mm, thickness 0.1mm, pyrolytic graphite, 99.99%
Carbon, foil, 500x500mm, thickness 0.2mm, flexible graphite, 99.8%
Carbon, foil, 500x500mm, thickness 1.0mm, flexible graphite, 99.8%