21272-U

Fase stazionaria per GC

phase UCW 98, bottle of 50 g

• Codice UNSPSC: 23151817
• NACRES: SB.54

Proprietà

• agenzia: meets requirements for USP G9
• Confezionamento: bottle of 50 g
• Parametri: 0-300 °C temp. range
• tecniche: gas chromatography (GC): suitable
• Gruppo funzionale matrice: UCW 98 phase
• Solubilità: chloroform, toluene: soluble
• Tipo di colonna: packed GC

Descrizione

Descrizione generale

Sintetizzata appositamente per risultare più pura, con range di peso molecolare ristretto e senza impurità o catalizzatori in tracce per l′impiego come fase stazionaria per la GC.

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.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 10 - Combustible liquids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): 609.8 °F - closed cup
• Punto d’infiammabilità (°C): 321 °C - closed cup