20342
Porapak™ Porous Polymer Adsorbent
matrix Porapak QS, 50-80 mesh, bottle of 75 cc
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About This Item
UNSPSC Code:
23201100
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form
solid
Quality Level
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
50-80 mesh
density
~0.34 g/mL (free fall density)
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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
For more information about any of our adsorbents, please visit sigma-aldrich.com/adsorbents
Application
Porapak™ QS treated with 2% phosphoric acid maybe used as column packing for gas chromatographic analysis of volatile fatty acids in rumen fluid.
Footnote
Porapak QS is a silanized version of Porapak Q to reduce surface adsorption.
Legal Information
PoraPak is a trademark of Waters
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Find documentation for the products that you have recently purchased in the Document Library.
Poole C.
Gas Chromatography, 127-130 (2012)
Analysis of rumen fluid volatile fatty acids by chromatography with Porapak QS.
kellogg DW.
Journal of Dairy Science, 52 (10), 1690-1692 (1969)
Grob RL and Barry EF.
Modern Practice of Gas Chromatography, 79-83 (2004)
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