21106

GC Stationary Phase

phase SE-54, bottle of 50 g

• UNSPSC Code: 23151817

Propiedades

• agency: meets requirements for USP G36
• Quality Level: 100
• packaging: bottle of 50 g
• parameter: 50-300 °C temp. range
• technique(s): gas chromatography (GC): suitable
• matrix active group: SE-54 phase
• solubility: chloroform: soluble
• column type: packed GC

Descripción

General description

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.[1] 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 before choosing a stationary phase.[2] SE-54 is good for nonpolar phase as it provides better peak shapes for polar chemicals.[3]

Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase.

Application

SE-54 is suitable for analysis of polycyclic aromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB) using PTE-5 fused silica capillary coulmn.[4]

Información de seguridad

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves