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MilliporeSigma

20333

Porapak™ Porous Polymer Adsorbent

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

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$352.00

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UNSPSC Code:
23201100

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form

solid

packaging

bottle of 75 cc

parameter

250 °C temp. limit

technique(s)

gas chromatography (GC): suitable

surface area

~525 m2/g

matrix

Porapak R

particle size

50-80 mesh

density

~0.32 g/mL (free fall density)

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This Item
203342033720338
Porapak™ Porous Polymer Adsorbent matrix Porapak R, 50-80 mesh, bottle of 75 cc

20333

Porapak™ Porous Polymer Adsorbent

Porapak™ Porous Polymer Adsorbent matrix Porapak R, 80-100 mesh, bottle of 75 cc

20334

Porapak™ Porous Polymer Adsorbent

Porapak™ Porous Polymer Adsorbent matrix Porapak S, 80-100 mesh, bottle of 75 cc

20337

Porapak™ Porous Polymer Adsorbent

Porapak™ Porous Polymer Adsorbent matrix Porapak S, 100-120 mesh, bottle of 75 cc

20338

Porapak™ Porous Polymer Adsorbent

surface area

~525 m2/g

surface area

~525 m2/g

surface area

~375 m2/g

surface area

~375 m2/g

form

solid

form

solid

form

solid

form

solid

particle size

50-80 mesh

particle size

80-100 mesh

particle size

80-100 mesh

particle size

100-120 mesh

matrix

Porapak R

matrix

Porapak R

matrix

Porapak S

matrix

Porapak S

packaging

bottle of 75 cc

packaging

bottle of 75 cc

packaging

bottle of 75 cc

packaging

bottle of 75 cc

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

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
Porous polymers are the most suitable adsorbent for applications based on the analysis of gases, acids, amines, organics of low carbon number and water.[1] 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.[2] Porapak™ R is a porous polymer composed of vinyl pyrollidone mainly suitable for the separation of ethers and esters.[1]

Application

Porapak™ R with Amberlite™ XAD-4 maybe useful for chromatographic sampling of polar and nonpolar low-volatility compounds.[3]

Legal Information

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Gas Chromatography, 127-130 (2012)
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
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)
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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