21288
GC Stationary Phase
phase SP®-2340, bottle of 5 g
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About This Item
UNSPSC Code:
23151817
Recommended Products
agency
meets requirements for USP G5
packaging
bottle of 5 g
parameter
25-275 °C temp. range
technique(s)
gas chromatography (GC): suitable
matrix active group
SP®-2340 phase
solubility
acetone: soluble
column type
packed GC
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 few parameters to consider for choosing a stationary phase.[2] SP-2340 are polar substituted alkylpolysiloxanes phase which are highly polar.[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
Metal column packed with SP-2340 is suitable for identification of muramic acid using gas chromatography.[4]
Legal Information
SP is a registered trademark of Sigma-Aldrich Co. LLC
Storage Class
12 - Non Combustible Liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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Thermotoga maritima sp. nov. represents a new genus of unique extremely thermophilic eubacteria growing up to 90 C
Huber, Robert, et al.
Archives of Microbiology, 144, 324-333 (1986)
D.L.B. Wetzel, G. Charalambous
Instrumental Methods in Food and Beverage Analysis, 199-199 (1998)
Mikael Harju et al.
Journal of chromatography. A, 1019(1-2), 111-126 (2003-12-03)
Comprehensive two-dimensional gas chromatography (GC x GC) of the 209 polychlorinated biphenyls (CBs) was carried out using a longitudinally modulated cryogenic system (LMCS) and liquid carbon dioxide as cryogen. The effluent from a non-polar column was modulated and further separated
C F Poole et al.
Journal of chromatography. A, 912(1), 107-117 (2001-04-20)
The solvation parameter model is used to study the influence of temperature and composition on the selectivity of nine poly(siloxane) and two poly(ethylene glycol) stationary phase chemistries for open-tubular column gas chromatography. A database of system constants for the temperature
R H Thompson et al.
Lipids, 16(9), 694-699 (1981-09-01)
Paris of C-24 epimeric sterols have been very difficult to separate by physical emthods. We report here the partial or complete separation of the trimethylsilyl ethers of nine pairs of C-24 epimeric sterols by gas liquid chromatography on a glass
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