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Porapak™ Porous Polymer Adsorbent

matrix Porapak R, 50-80 mesh, bottle of 75 cc

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About This Item

Code UNSPSC :
23201100

Forme

solid

Conditionnement

bottle of 75 cc

Paramètres

250 °C temp. limit

Technique(s)

gas chromatography (GC): suitable

Superficie

~525 m2/g

Matrice

Porapak R

Taille des particules

50-80 mesh

Densité

~0.32 g/mL (free fall density)

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Description générale

Porous polymers are the most suitable adsorbent for applications based on the analysis of gases, acids, amines, organics of low carbon number and water. They are best suited for gas chromatography and are basically copolymers of polydivinylbenzene (DVB) which are very porous in nature ranging from mesoporous to microporous. Porapak™ R is a porous polymer composed of vinyl pyrollidone mainly suitable for the separation of ethers and esters.
Porapak porous polymers are spherical beads with consistent particle size, porosity, and surface area that help to insure analytical precision and accuracy.

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

Application

Porapak™ R with Amberlite™ XAD-4 maybe useful for chromatographic sampling of polar and nonpolar low-volatility compounds.

Informations légales

Amberlite is a trademark of DuPont de Nemours, Inc.
PoraPak is a trademark of Waters

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Certificats d'analyse (COA)

Lot/Batch Number

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Consulter la Bibliothèque de documents

Gas Chromatography, 127-130 (2012)
Chromatographic characterization of porous polymers for use as adsorbents in sampling columns.
Butler LD and Burke MF.
Journal of Chromatographic Science, 14 (3), 117-122 (1976)
Grob RL and Barry EF.
Modern Practice of Gas Chromatography, 79-83 (2004)
Jackson P Audley et al.
Journal of economic entomology, 113(6), 2772-2784 (2020-11-03)
The walnut twig beetle, Pityophthorus juglandis Blackman, and its associated fungal pathogen that causes thousand cankers disease, currently threaten the viability of walnut trees across much of North America. During a 2011 assessment of seasonal flight patterns of P. juglandis
Yosuke Funato et al.
Developmental cell, 55(4), 387-397 (2020-09-13)
Extracellular pH is usually maintained around 7.4 in multicellular organisms, and cells are optimized to proliferate under this condition. Here, we find cells can adapt to a more acidic pH of 6.5 and become addicted to this acidic microenvironment by

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