Carboxen® Adsorbent

matrix Carboxen® 569, 20-45 mesh, bottle of 500 g

EC Number:

Quality Level




bottle of 500 g


LPLC: suitable


Carboxen® 569

matrix active group


particle size

20-45 mesh

pore size

~0.10 cm3/g macroporosity
~0.14 cm3/g mesoporosity
~0.20 cm3/g microporosity
~5-8 Å pore diameter

surface area

~485 m2/g


~0.61 g/mL (free fall density)

separation technique

reversed phase

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General description

Carboxen® Adsorbent is ideally used for solid-phase microextraction (SPME). It is highly efficient in extraction of small polar molecules from aqueous solution.
A carbon molecular sieve (CMS) is the porous carbon skeletal framework that remains after pyrolysis of a polymeric precursor. These particles are:
  • Spherical (better packed bed performance than granular particles)
  • Hard and non-friable (pack well, will not break)
  • Highly porous (high surface areas)
  • Used for molecules with an analyte size relative to C2-C5 n-alkanes
  • Hydrophobic (can be used in high humidity environments)

Generally, CMS adsorbents offer greater relative adsorptive strength compared to spherical graphitized polymer carbon (SGPC) and graphitized carbon black (GCB) adsorbents. Our Carboxen products are a type of CMS adsorbent.
  • Have tapered pores, resulting in excellent thermodynamic properties for both adsorption and desorption (have the best thermodynamic performance of any adsorbents)
  • The surface chemistry can be tailored for specific target analytes

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


Carboxen® 569 was used for trapping a range of replacement chlorofluorocarbons varying in boiling point from -48.4 to -9.8°C which is highly advantageous for analysis of trace gases in atmosphere.

Legal Information

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

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Certificate of Analysis

Certificate of Origin

Evaluation of Carboxen carbon molecular sieves for trapping replacement chlorofluorocarbons.
O'Doherty SJ, et al.
Journal of Chromatography A, 630 (1), 265-274 (1993)
Louise Urruty et al.
Journal of agricultural and food chemistry, 50(11), 3129-3136 (2002-05-16)
To provide an efficient and running analytical tool to strawberry plant breeders who have to characterize and compare the aromatic properties of new cultivars to those already known, a HS-SPME/GC-MS analysis method has been coupled with a statistical treatment method...
Noushin Rastkari et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 877(14-15), 1568-1574 (2009-04-28)
Carbon nanotubes (CNTs) are a kind of new carbon-based nano-materials which have drawn great attention in many application fields. The potential single-walled carbon nanotubes (SWCNTs) as solid-phase microextraction (SPME) adsorbents for the preconcentration of environmental pollutants have been investigated in...
Julien Januszkiewicz et al.
Journal of chromatography. A, 1195(1-2), 16-24 (2008-05-23)
A headspace solid-phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC/MS) method was developed using experimental designs to quantify the flavor of commercial Cheddar cheese and enzyme-modified Cheddar cheese (EMCC). Seven target compounds (dimethyl disulfide, hexanal, hexanol, 2-heptanone, ethyl hexanoate...
Frank Sporkert et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 772(1), 45-51 (2002-05-23)
A new and in part automated headspace solid-phase microextraction method for quantitative determination of the highly toxic rodenticide fluoroacetic acid (FAA) in serum and other biological samples has been developed. FAA and deuterated acetic acid (internal standard) were extracted from...
Carbon Molecular sieves (CMS) are a versatile range of adsorbents that can be tailored for specific applications. Supelco® scientists have been synthesizing synthetic CMS carbons for several decades, starting from tailoring of the starting polymers/copolymers, to modifying the final properties of the subsequent CMS carbon.
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Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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