Carboxen® Adsorbent

matrix Carboxen® 564, 20-45 mesh, bottle of 10 g

EC Number:

Quality Level




bottle of 10 g


LPLC: suitable


Carboxen® 564

matrix active group


particle size

20-45 mesh

pore size

~0.13 cm3/g mesoporosity
~0.14 cm3/g macroporosity
~0.24 cm3/g microporosity
~6-9 Å pore diameter

surface area

~400 m2/g


~0.61 g/mL (free fall density)

separation technique

reversed phase

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General description

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

Legal Information

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

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN1362 - class 4.2 - PG 3 - Carbon, activated

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

RSC Chromatography Monographs
Pawliszyn J. et al.
Applications of Solid Phase Microextraction, 64-65 (1999)
The effects of temperature and pressure on the performance of Carboxen/PDMS fibres during solid phase microextraction (SPME) of headspace volatiles from cooked and raw turkey breast.
Brunton NP, et al.
Flavour and Fragrance Journal, 16(4), 294-302 (2001)
S W Jenkins et al.
Environmental science and pollution research international, 2(4), 207-210 (1995-07-01)
A simple, rapid method for the extraction of N-nitrosodimethylamine (NDMA) from drinking and surface waters was developed using Ambersorb 572. Development of an alternative method to classical liquid-liquid extraction techniques was necessary to handle the workload presented by implementation of...
Filippo Maggi et al.
Chemistry & biodiversity, 8(1), 95-114 (2011-01-25)
Headspace solid-phase microextraction (HS-SPME) coupled with GC/FID and GC/MS was applied for the first time in the analysis of the volatile fraction of an Ephedra species. Notably, six Italian populations (Marche, Abruzzo, and Sardinia) of Ephedra nebrodensis subsp. nebrodensis, covering...
B D Page et al.
Journal of chromatography. A, 873(1), 79-94 (2000-04-11)
The headspace solid-phase microextraction (HS-SPME) efficiencies from vegetable oil of the recently available Carboxen-poly(dimethylsiloxane) (PDMS) and divinylbenzene-Carboxen-PDMS fibres were found to be much greater than those of the PDMS fibre for a number of volatile contaminants. Using these Carboxen-based fibres...

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