HPLC Sorbenter

Supplier: MACHEREY-NAGEL

Polyamide 6 adsorbents for column chromatography.

Supplier: MACHEREY-NAGEL

High purity silica phase for HPLC.

Supplier: MACHEREY-NAGEL

Hard granular magnesia silica gel: MgO (15,5 ±0,5%) SiO₂ (84,0 ±0,5%) Na₂SO₄ (≤1,0%) 60/100 mesh.

Supplier: MACHEREY-NAGEL

Aluminium oxide adsorbents for column chromatography.

Supplier: MACHEREY-NAGEL

High purity silica phase for preparative HPLC.

Supplier: MERCK PRODUCTION CHEMICALS

These particles have a perfect spherical shape and are available in two particle sizes: 10 and 20 μm. Together with a pore diameter of 100 Å (10 nm), these new sorbents fit perfectly into the polishing step of small peptides like insulin and other biopharmaceutical and pharmaceutical APIs like antibiotics and hormones. This highly porous silica is produced by spray drying.

Supplier: MP Biomedicals

Lysozyme lysates harvested from cultures of Micrococcus lysodeikticus were attached to sepharose and used for affinity chromatography to isolate various bacteriolytic enzymes and it has also been used in a study to investigate the encapsulation of protein drugs in microparticles.

Supplier: MERCK PRODUCTION CHEMICALS

The aluminium oxide crystal structure comprises octahedrally and tetrahedrally coordinated aluminium coupled by oxygen atoms. The aluminium oxide surface is covered by free hydroxyl groups. There are different acidic and basic centers (Broenstedt acid, Lewis acid and Lewis basic centers) that result in anion and cation exchange properties. Aluminium oxide exhibits a higher pH-stability than silica gel, especially in the alkaline range. Aluminium oxide occurs in various crystal modifications resulting in different pore diameters.

Supplier: MERCK PRODUCTION CHEMICALS

Udvalget af Mercks standardiserede og modificerede silicageler fås i mange granuleringer og leveres fra samme producent, beregnet til kromatografi. Standardiserede silicageler anvendes almindeligvis i separationsprocesser til at oprense kemiske forbindelser i store mænger (ton). Modsat anvendes modificeret silica ved separationsproblemer, der ikke løses på en tilfredsstillende måde ved brug af umodificeret silica.

Supplier: DR MAISCH

Semi-preparative and preparative spherical silica material allows the clean-up of raw products from mg up to kg amounts, depending on the column ID and length. Spherical materials are easy to pack in columns.

Supplier: MERCK PRODUCTION CHEMICALS

Micro-crystalline cellulose is a hydrophilic polysaccharide packing material preferred for the raw separation of amino acids and related compounds. Cellulose is also used for the gentle purification of bio-molecules. Because of the organic nature of cellulose, it can only be used in pre-swollen state and under gentle or hydrostatic pressure.

Supplier: MERCK PRODUCTION CHEMICALS

Geduran® Si 60, 63 - 200 µm

Supplier: MERCK PRODUCTION CHEMICALS

Består af magnesium og silikoneoxider i et forhold på ca. 85:15. Dette er en polær fase, der anvendes til kromatografi af forbindelser, som f.eks. steroider og alkaloider. Aktiviteten kan kontrolleres vha. den anvendte aktiveringstemperatur.

Supplier: MP Biomedicals

Silica is highly porous and has a number of distinct crystalline forms (polymorphs) in addition to amorphous forms. It is used as a suspending and thickening agent in pharmaceuticals. It is also used in the extraction of DNA and RNA due to its ability to bind to the nucleic acids under the presence of chaotropes.

Supplier: MERCK PRODUCTION CHEMICALS

LiChroprep® is a proven, highly successful packing material providing fast, effective and reproducible separations.

Supplier: VARIAN

The PL-SAX media are well suited for anion exchange HPLC separations of proteins, peptides, and deprotected synthetic oligonucleotides. Denaturing conditions of temperature, organic solvent, and high pH levels are used for the oligonucleotide separations.