Glass columns

Aluminium oxide adsorbents for low pressure column chromatography

Aluminium oxides produced by dehydration of different aluminium hydroxides, e. g. hydrargillite between 400 and 500°C, activity grade I, particle size 50 to 200µm, specific surface (BET) ~ 130m²/g.

Chromatographic columns, borosilicate glass

NS necks are in compliance with DIN 12242 standards.

Chromatographic columns, borosilicate glass, with frit

Pore size 1. NS necks are in compliance with DIN 12242 standards.

Chromatographic columns, DURAN® tubing

Made of DURAN® tubing. Basic chromatographic columns with indentations above the stopcock for placing a cotton plug, with NS socket, with PTFE stopcock and retaining device.

Chromatographic columns, PTFE stopcock, DURAN® tubing

Made of DURAN® tubing. Chromatography columns with sintered frit (porosity 0), NS socket and PTFE stopcock.

Chromatographic columns, valve stopcock, DURAN® tubing

Made of DURAN® tubing. Chromatography columns with sintered frit (porosity 0), NS socket and needle-valve stopcock (bore 0 - 2.5 mm).

Chromatographic columns, with beaded rim and PTFE stopcock, DURAN® tubing

Made of DURAN® tubing. Chromatography columns with sintered frit, porosity 0.

Chromatographic columns, with beaded rim, DURAN® tubing

Made of DURAN® tubing. With PTFE stopcock and retaining device. With indentations above the stopcock for placing a cotton plug.

Florisil® adsorbent for low pressure column chromatography

hard granular magnesia silica gel: MgO 15.5±0.5%, SiO2 84.0 ±0.5%,Na2SO4œ1.0%; 60/100 meshtypical applications: sample preparation (SPE); clean-up of pesticide residues, separation of chlorinated pesticides, extraction of steroids, sex hormones, antibiotics, lipids etc.

Glass fiber wadding

Glass fiber wadding are, e.g., used for GC liners, packed GC columns etc.

Glass Wool

Glass wool, quartz wool and glass fiber wadding are, e.g., used for GC liners, packed GC columns etc.

Glass wool

Extra fine. In packs as outlined below.

Quartz Sand

Quartz wool

Fibre thickness 2 to 12 µm.

Quartz wool, glass fiber wadding

Quartz wool and glass fiber wadding are, e.g., used for GC liners, packed GC columns etc.

Seasand for Chromatographic columns

Acid washed, calcined. Pack of 1000 g.

Silica adsorbents for low pressure column chromatography

Standard silica 60, pore size ~ 60 Å; pore volume ~ 0.75ml/g; spec. surface BET ~ 500m²/g. highly porous, amorphous silicic acid in the form of hard, opalescent particles, prepared by precipitation of water glass with sulphuric acid. Silica FIA for the fluorescence indicator adsorption procedure for the determination of hydrocarbon groups in the testing of liquid fuels in accordance with DIN 51791 and ASTM D 1319-58T. The FIA method determines saturated hydrocarbons, olefins and aromatic hydrocarbons of a sample chromatographically by adsorption and desorption in a column filled with FIA silica, in the presence of a fluorescent dye mixture. Further silica adsorbentson request.