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일반 설명
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
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.
애플리케이션
Porapak™ QS packed column maybe used for gas-solid chromatographic determination of moisture in lyophilized pharmaceutical products.
각주
Porapak QS is a silanized version of Porapak Q to reduce surface adsorption.
법적 정보
PoraPak is a trademark of Waters
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
개인 보호 장비
Eyeshields, Gloves, type N95 (US)
가장 최신 버전 중 하나를 선택하세요:
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)
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