You searched for: Chromatography Sorbents

Supplier: MACHEREY-NAGEL

Polyamide 6 adsorbents for thin layer chromatography.

Supplier: MACHEREY-NAGEL

Irregular silica phase for preparative 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

The high purity CHROMABOND® adsorbents can be used for a self-filling of SPE columns or further analytical applications.

Supplier: Novabiochem (Part of Merck)

H-Arg(Pbf)-HMPB NovaPEG resin, 0.20 - 0.60 mmol/g, 1 g

Supplier: MACHEREY-NAGEL

High purity silica phase for HPLC.

Supplier: MACHEREY-NAGEL

High purity silica phase for preparative HPLC.

Supplier: MACHEREY-NAGEL

Silica adsorbents for thin layer chromatography.

Supplier: MACHEREY-NAGEL

High purity silica phase for HPLC.

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

Selection of Merck's standardised and modified silica gels that are available in many granulations and supplied from one single source, dedicated to chromatography. Standardised silica gels are widely used in separation processes to purify valuable compounds in ton quantities. Modified silica on the other hand is used in separation problems, which cannot be adequately solved using unmodified silica.

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: 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

Composed of magnesium and silicon oxides in the approximate ratio of 85:15. This is a polar phase used for the chromatography of compounds such as steroids and alkaloids. This activity can be controlled by the activation temperature used.

Supplier: MERCK PRODUCTION CHEMICALS

Geduran® Si 60, 40 - 63 µm

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

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

This silica gel is suitable for high performance flash chromatography.

Supplier: MERCK PRODUCTION CHEMICALS

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

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: Restek

These packaging materials can be used for easy scale-up to preparative chromatography or for packing the desired columns.

Supplier: Restek

Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. CarboBlack packings are treated with KOH or picric acid for basic or acidic compounds, and special alcoholic beverage loadings are available. CarboBlack supports provide resolution and retention similar to Carbopack™ and Carbograph supports.

Supplier: VARIAN

PL-SCX is a macroporous PS/DVB matrix with a very hydrophilic coating and strong cation exchange functionality. The manufacturing process is controlled to provide optimum density of strong cation-exchange moieties for analysing, separating, and purifying a wide range of biomolecules from small peptides to large proteins.

Supplier: Restek

Ottawa sand is listed in several U.S. EPA methods as the specified medium for matrix spike and laboratory control blanks.

Supplier: Restek

Packing material, Tenax®-TA, mesh size of 35/60

Supplier: VARIAN

Bondesil™ C18 bulk sorbent, 40 µm

Supplier: VARIAN

SepTech™ C18 bulk media, designed for high performance separations at high capacity. The two pore sizes, 60 Å and 150 Å, have been optimised to give high capacity for small molecules and larger natural molecules and peptides, respectively.

Supplier: VARIAN

The PLRP-S reversed phase HPLC media delivers the pure oligonucleotides (oligos) required for genomics applications, including quantitative PCR, microarrays, and gene synthesis assays.

Supplier: Restek

Packing material, Porapak S, mesh size of 80/100, temperature limits of 250 °C

Supplier: Restek

Diatomaceous earth is used as a filter aid to improve extraction efficiency of densely packed soils, such as clays. By mixing the sample with diatomaceous earth, recoveries can be improved and excess moisture can be absorbed.