21096
GC Stationary Phase
phase DC-550, bottle of 50 g
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About This Item
UNSPSC Code:
23151817
Recommended Products
agency
meets requirements for USP G28
packaging
bottle of 50 g
parameter
20-250 °C temp. range
technique(s)
gas chromatography (GC): suitable
matrix active group
DC-550 phase
solubility
acetone, toluene: 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 a few parameters that should be considered before choosing a stationary phase.[2]
Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase.
application
DC-550 may be used as stationary phase along with other stationary phases to determine the relationship between the Kovats′ coefficient and the retention polarity for silicone stationary phases and their mixtures.[3]
Storage Class
10 - Combustible liquids
wgk_germany
WGK 3
flash_point_f
437.0 °F - closed cup
flash_point_c
225.00 °C - closed cup
ppe
Eyeshields, Gloves
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Kovats' coefficients for predicting polarities in silicone stationary phases and their mixtures.
Fernandez-Sanchez, E., et al.
Chromatographia, 31, 75-79 (1991)
James P. Lodge, Jr.
Methods of Air Sampling and Analysis, 98-98 (1988)
David B. Troy, Paul Beringer
Remington: The Science and Practice of Pharmacy, 605-605 (2006)
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