21241
GC Stationary Phase
phase OV-225, bottle of 5 g
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About This Item
Code UNSPSC :
23151817
Produits recommandés
Agence
meets requirements for USP G19
Conditionnement
bottle of 5 g
Paramètres
0-265 °C temp. range
Technique(s)
gas chromatography (GC): suitable
Groupe de la matrice active
OV-225 phase
Solubilité
acetone: soluble
Type de colonne
packed GC
Description générale
GC methods are divided into two classes depending on the nature of stationary phases; gas-solid chromatography (GSC) and gas-liquid chromatography (GLC). GSC has solid adsorptive material and solute particles are removed from mobile phase by electrostatic forces. GLC has a thin layer of liquid coated or bonded on the surface of an inert particle or on the walls of the column where solute particles are retained in the liquid phase based on their partition coefficients. The primary necessity of a stationary phase is to provide sample separation sustaining phase integrity over a reasonable period of time. It should be stable for the chemical and thermal changes. Selectivity, peak symmetry, analysis time, degree of separation, peak tailing are a few parameters that should be considered in order to choose a stationary phase. OV-225 is a polar siliconised phase. It has 50% methysilicone, 25% cyanopropyl and 25% phenyl-silicone. It is possible to separate aromatic compounds from aliphatic ones containing the same number of carbons.
Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase.
Application
OV-225 on columns is suitable for resolving neutral and amino sugars during chemical analysis using gas chromatograph.
Code de la classe de stockage
12 - Non Combustible Liquids
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
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Certificats d'analyse (COA)
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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
S J Millar et al.
Infection and immunity, 51(1), 302-306 (1986-01-01)
Two separate species of lipopolysaccharide (LPS) from Bacteroides gingivalis 381 have been isolated. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis demonstrated not only the heterogeneity of each species, but also that they represented high- and low-molecular-weight LPS entities. Although both contained the
Michael O'Keefe
Residue Analysis in Food: Principles and Applications, 187-187 (2000)
David B. Troy, Paul Beringer
Remington: The Science and Practice of Pharmacy, 605-605 (2006)
James P. Lodge, Jr.
Methods of Air Sampling and Analysis, 98-98 (1988)
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