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11021-U Supelco

Graphsphere Adsorbent

matrix Graphsphere 2016, 60-80 mesh, bottle of 10 g

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Properties

Related Categories Adsorbents, Analytical/Chromatography, Gas Chromatography (GC), Specialty Carbon Adsorbents, Spherical Graphitized Polymer Carbon (SGPC) Adsorbents More...
Quality Level   100
description   Formally Carboxen® 1016
packaging   bottle of 10 g
matrix   Formally Carboxen® 1016
  Graphsphere 2016
particle size   60-80 mesh
pore size   ~0.34 cm3/g mesoporosity
  ~0 cm3/g macroporosity
  ~0 cm3/g microporosity
  ~0 Å pore diameter
surface area   ~75 m2/g
density   ~0.41 g/mL (free fall density)

Description

General description

A spherical graphitized polymer carbon (SGPC) has an innovative structure; a porous or non-porous core (the carbon framework that remains after pyrolysis of polymeric precursor), and a graphitized shell of a controlled thickness. The graphitization process results in a highly pure surface with great adsorption and desorption (if required) properties. Surface interactions depend solely on dispersion (London) forces. These amorphous/graphitic adsorbents are:
• Spherical (better packed bed performance than granular particles)
• Hard and non-friable (pack well, will not break)
• Used for molecules with an analyte size relative to C5-C12 n-alkanes
• Hydrophobic (can be used in high humidity environments)

Generally, SGPC adsorbents offer weaker relative adsorptive strength compared to carbon molecular sieve (CMS) adsorbents, and similar relative adsorptive strength compared to graphitized carbon black (GCB) adsorbents. Our Graphsphere products are a type of SGPC adsorbent. They are great alternatives to GCB adsorbents (which are granular and friable).

For more information about any of our specialty carbon adsorbents, please visit sigma-aldrich.com/carbon

Legal Information

Carboxen is a registered trademark of Sigma-Aldrich Co. LLC

Graphsphere is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
GHS08  GHS08
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
nwg

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Carbon Adsorbents: Physical Characteristics and Selection Guide

The following information is gathered to assist chemists and method developers in locating the proper specialty carbon adsorbent for their use. Additional assistance can be obtained by contacting our...
Keywords: Adsorption, Air Monitoring, Gas chromatography

High Purity Carbon Adsorbents for Sample Preparation and Chromatographic Applications

The first high purity Supelco® carbon adsorbents were made for gas chromatographic packed columns. Then, specialty carbons were developed for thermal desorption tubes followed by the introduction of ...
Keywords: Adsorption, Air sampling, Chromatography, Diffusion, Flame ionization detector, Gas chromatography, High performance liquid chromatography, Passive sampling, Pesticides, Phase transitions, Purification, Sample preparations, Separation, Solid phase extractions, Solid phase microextractions, Thermal conductivity detector

Related Content

Choosing the Right Adsorbent for Your Thermal Desorption Gas Chromatography Applications [VIDEO]

This webinar provides an overview of adsorbents that are suitable for thermal desorption (TD), and the factors you need to consider when selecting an adsorbent. The presentation provides details abou...
Keywords: Sample preparations

Peer-Reviewed Papers
15

References

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