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
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General description
合成的产品更纯净，分子量范围窄，不含用作 GC 固定相的痕量催化剂或杂质。
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. SP-2340 are polar substituted alkylpolysiloxanes phase which are highly polar.
Application
Metal column packed with SP-2340 is suitable for identification of muramic acid using gas chromatography.
Legal Information
SP is a registered trademark of Sigma-Aldrich Co. LLC
存储类别
12 - Non Combustible Liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
法规信息
新产品
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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)
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
Waruna Kiridena et al.
Journal of chromatography. A, 1081(2), 248-254 (2005-07-26)
The solvation parameter model is used to characterize the retention properties of the bis(cyanopropylsiloxane)-co-methylsilarylene, HP-88, and poly(siloxane), Rtx-440, stationary phases over the temperature range 60-140 degrees C. HP-88 is among the most cohesive, dipolar/polarizable and hydrogen-bond basic of stationary phases
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
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