Abstract: The invention relates to the use of gelation moulds made from hydrophobicized glass tubes for the production of monolithic mouldings as sorbents for chromatography.

Abstract: The invention relates to a process for the production of chromatography columns or capillaries containing sorbents of monolithic mouldings which can remain directly in their gelation mould after production. This is achieved by the process according to the invention, in which the gelation mould is repeatedly filled with the monomer sol.

Abstract: The invention relates to monolithic sorbents with a casing of fibre-reinforced plastic. Through the use of fibre-reinforced plastic having a viscosity of between 40 and 100 ml/10 min by the MVI method, the casing can be applied to the moulding leaving just a small dead space and has adequate mechanical stability.

Abstract: The invention relates capillaries which are filled with or which can be filled with particulate sorbents. Said capillaries are sealed with a frit on at least one end. The frit is made of a monolithic inorganic or organic material which is directly polymerized into the capillary or which is introduced into the first capillary in the form of a second capillary filled with monolithic material.

Abstract: The invention relates to a device (1) for processing samples (2), comprising a body (3) with a collecting chamber (4), which can be connected with a pump (5) for aspirating, or dispensing fluids and that acts on this collecting chamber, a separating chamber (6) adjoining the collecting chamber (4) for the solid phase extraction and elution of organic, or inorganic particles (7) separated from these samples (2), and an opening (8) for releasing these particles (7). The device in accordance with the invention relates to individual pipette tips, as well as to SPE microplates, and is distinguished in that the device (1) comprises a capillary (9), which is connected with the collecting chamber (4), or with the body (8), and has a packing (10) for the solid phase extraction of organic, or inorganic particles (7) separated from these samples (2) and is used as a separating chamber (6).

Abstract: The invention relates to use of monolithic sorbents for preparative separation processes, specially for processes according to the simulated moving bed (SMB) principle.

Abstract: The invention relates to polyamides which are derivatized with polymerizable double bonds and are obtainable by reaction of the amino groups of the polyamide with an amino-reactive compound which contains a polymerizable double bond, or by reaction of the carboxyl groups of the polyamide with a carboxyl group-reactive compound which contains a polymerizable double bond. Examples of amino-reactive compounds which contain a polymerizable double bond are the anhydrides of ethylenically unsaturated carboxylic acids, such as acrylic acid chloride or anhydride, methacrylic acid chloride or anhydride, or vinylazlactone derivatives. An example of a carboxyl group-reactive compound is allylamine.These derivatized polyamides can be converted into polymer-modified base polymers (typically block polymers) with improved properties. These polymer-modified base polymers are suitable as adsorbents for chromatography and as carriers for enzymes.

Abstract: The invention relates to improved chromatographic support materials, to the preparation thereof and to the use thereof as sorbent for chromatography. The particles of these materials have hydrophobic surfaces consisting of fatty acid esters in the pores and hydrophilic outer surfaces. The materials according to the invention permit direct separation of protein-containing samples by means of reverse phase methods.

Abstract: The invention relates to a separating material for chromatography in which cyclodextrin is bonded to a support via a carbamic acid group.