21006
GC Stationary Phase
phase Apiezon L, bottle of 25 g
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About This Item
Code UNSPSC :
41115717
Produits recommandés
Forme
solid
Conditionnement
bottle of 25 g
Paramètres
50-300 °C temp. range
Technique(s)
gas chromatography (GC): suitable
Groupe de la matrice active
Apiezon L phase
Solubilité
chloroform, toluene: 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 and peak tailing are a few parameters which are considered while choosing a stationary phase. Apiezon L is basically purified hydrocarbon grease which is suitable as a liquid phase for GC analysis. It is considered as one of the most selective phase for Polychlorinated Biphenyls (PCB) congeners.
Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase.
Application
Apiezon L may be used as stationary phase to determine the retention indices of benzene and benzene derivatives on the basis of their molecular structure using GC equipped with a thermal conductivity detector.
Code de la classe de stockage
13 - Non Combustible Solids
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, type N95 (US)
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Certificats d'analyse (COA)
Lot/Batch Number
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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
Mitchell D. Erickson
Analytical Chemistry of PCBs, 250-250 (1997)
Calculation of retention indices for benzene and benzene derivatives on the basis of molecular structure.
Cook, Lawrence E., and Frank M. Raushel.
Journal of Chromatography A, 65, 556-559 (1972)
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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