Properties:
Related Categories |
Analytical/Chromatography,
GC Stationary Phases,
Gas Chromatography (GC),
Packed GC Columns and Components
|
packaging
|
bottle of 50 g
|
parameter
|
0-175 °C temp. range
|
application(s)
|
gas chromatography (GC): suitable
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matrix active group
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Polyethyleneimine phase
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solubility
|
acetone: soluble
|
Description:
Frequently Asked Questions
Frequently Asked Questions are available for this Product.
General description
Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase.
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 few parameters to consider for choosing a stationary phase. Polyethyleneimine (PEI) is suitable for protein separation. It binds insistently to negative charged stationary phase. It is a pseudostationary phase which is also a cationic polymer.
Safety:
Symbol
GHS07, GHS09
Hazard statements
H302-H317-H319-H411
Precautionary statements
P273-P280-P333 + P313-P337 + P313-P391-P501
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves