Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

20344

Porapak Porous Polymer Adsorbent

matrix Porapak QS, 100-120 mesh, bottle of 75 cc

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
23201100

form

solid

packaging

bottle of 75 cc

parameter

250 °C temp. limit

technique(s)

gas chromatography (GC): suitable

surface area

~550 m2/g

matrix

Porapak QS

particle size

100-120 mesh

density

~0.34 g/mL (free fall density)

Looking for similar products? Visit Product Comparison Guide

General description

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 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 QS packed column maybe used for gas-solid chromatographic determination of moisture in lyophilized pharmaceutical products.

Footnote

Porapak QS is a silanized version of Porapak Q to reduce surface adsorption.

Legal Information

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)


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

G W Lyman et al.
Journal - Association of Official Analytical Chemists, 62(1), 71-74 (1979-01-01)
A gas-solid chromatographic procedure is described for the analysis of low levels of moisture in individual lyophilized vials of pharmaceutical products. Dry ethanol, which contains methanol as the internal standard, is injected through the septum of the vial to dissolve
Grob RL and Barry EF.
Modern Practice of Gas Chromatography, 79-83 (2004)
Poole C.
Gas Chromatography, 127-130 (2012)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service