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21195-U

Supelco

GC Stationary Phase

phase Polyethyleneimine, bottle of 50 g

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About This Item

Código UNSPSC:
23151817
NACRES:
SB.54

embalagem

bottle of 50 g

Parâmetros

0-175 °C temp. range

técnica(s)

gas chromatography (GC): suitable

Grupo ativo da matriz

Polyethyleneimine phase

solubilidade

acetone: soluble

tipo de coluna

packed GC

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Descrição geral

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

Pictogramas

Exclamation markEnvironment
GHS07,GHS09

Palavra indicadora

Warning

Frases de perigo

H302,H317,H319,H411

Classificações de perigo

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Sens. 1

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

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Lot/Batch Number

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Branched PEI-g-PEG PEG Mn 550

Sigma-Aldrich

900926

Branched PEI-g-PEG

Polyethylenimine, 80% ethoxylated solution 37 wt. % in H2O

Sigma-Aldrich

306185

Polyethylenimine, 80% ethoxylated solution

Branched PEI-g-PEG PEG Mn 5,000

Sigma-Aldrich

900743

Branched PEI-g-PEG

Barry L. Karger
High Resolution Separation and Analysis of Biological Macromolecules: Fundamentals (1996)
B Maichel et al.
Journal of chromatography. A, 853(1-2), 121-129 (1999-09-16)
The effect of methanol and acetonitrile, respectively, on the separation of neutral compounds (benzyl alcohol, phenols) is investigated in electrokinetic chromatographic (EKC) systems consisting of polyethyleneimine (PEI) as charged, polymeric, replaceable pseudostationary phase. The separation systems consist of a buffer
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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