Multicapillary packing chromatography method
AssigneeSeparative
InventorFrancois PARMENTIER
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Abstract
Chromatography method in which a gaseous, liquid or supercritical mobile phase containing species to be separated is circulated through a packing, said packing being characterized in that: it comprises a plurality of capillary ducts extending in the packing between an upstream face through which the mobile phase enters the packing and a downstream face through which the mobile phase leaves the packing—the material of the walls comprises a first population of connected pores, providing passages from one duct to the next enabling molecular diffusion to take place between adjacent ducts, pores having a mean diameter (dpore) of greater than 2 times the molecular diameter of at least one species to be separated—the diameter of the ducts is less than 50 μm.
Claims10
A chromatography method in which a gas, liquid or supercritical mobile phase is circulated, containing species to be separated through a packing comprising a stationary phase, wherein
- the packing includes a plurality of capillary conduits extending in the packing between a so-called upstream face through which the mobile phase penetrates into the packing and a so-called downstream face through which the mobile phase emerges from the packing,
- the material of the walls of said conduits includes a network of connected pores, said pores forming passages from one conduit to the other allowing molecular diffusion to be operated between adjacent conduits, said pores having an average diameter greater than twice the molecular diameter of at least one species to be separated,
- the average diameter of the conduits is less than 50 μm.
Dependencies are inferred from the claim text.