You searched for: Chromatography Sorbents

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: MERCK PRODUCTION CHEMICALS

Geduran® Si 60, 40 - 63 µm

Supplier: MERCK PRODUCTION CHEMICALS

This silica gel is suitable for high performance flash chromatography.

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

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

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: 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

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: 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: 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: 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.

Supplier: Merck

LiChrospher® RP-18 ADS, 25 µm

Supplier: Merck

Superspher® 60 RP-select B, 4 µm

Supplier: Merck

These porous polymers, based on 2,6-diphenyl-p-phenylene oxide, are widely used as an adsorbent in both air collection and purge trap applications.

Supplier: Avantor

SPE sorbent for clean-up columns. Suitable for the determination of Hydrocarbon Oil Index according ISO 9377-2 and NEN 5733.

Supplier: Avantor

J.T.Baker® BAKERBOND®, Hi-propyl (C₃), BAKERBOND®, 5 µm

Supplier: Merck

In general, ion exchangers consist of a cross-linked polymer matrix with a uniform distribution of fixed ionic groups sited throughout the resin structure. These must be balanced by a similar number of ions of the opposite charge, (counter ions) to maintain electrical neutrality. Cation exchangers therefore, exchange and enrich only cations, anion exchangers only anions. In contrast adsorber resins have a non ionic, but depending on the structure, a somewhat polar character, and don't adsorb stoichiometrically both: anions, cations, as well as uncharged compounds.

Supplier: Merck

LiChrospher®, LiChrospher® 100 RP-18 endcapped, 5 µm, 07

Supplier: Merck

* Green fluorescent indicator

Supplier: Avantor

J.T.Baker® BAKERBOND®, Diol silica irregular 40 µm, 60 Å Prep LC sorbent packing media, 100 g

Supplier: Avantor

Silica-based column packings with high performance purification of strongly hydrophilic peptides and proteins, based on hydrophobic characteristics and molecular shapes.

Supplier: Merck

LiChrosorb® is an irregular shaped silica sorbent. LiChrosorb® packing materials offer the compete programme of non-polar derivatives (RP-8, RP-18, RP-select B) and polar derivatives (Si 60 and Si 100).

Supplier: Avantor

Hydrophilic polymer-CSX.

Supplier: Avantor

Prep-scale packing is intended for use at low pressure with a peristaltic pump.

Supplier: Avantor

J.T.Baker® BAKERBOND®, Silica-based reverse phase media, 15 µm, 300 Å

Supplier: Avantor

Prep-scale packing is intended for use at low pressure with a peristaltic pump.

Supplier: Avantor

Prep-scale packing is intended for use at low pressure with a peristaltic pump.

Supplier: TOSOH Bioscience

Bulk packing, PWXL Top-Off, 1 g wet resin, 10 µm

Supplier: Avantor

Prep-scale packing is intended for use at low pressure with a peristaltic pump.