You searched for: Chromatography Columns

Supplier: VARIAN

VF-1301ms ultra-low-bleed thin film columns have a similar selectivity to VF-624ms and are suitable for the analysis of semivolatile organic solvents, as well as PCBs and pesticides.

Supplier: VARIAN

Polaris™ NH₂ is an aminopropylsilane-covered silica that can be used in either reversed or normal phase conditions. Exhibit higher efficiencies for carbohydrate analysis than ionic gel-based columns

Supplier: VARIAN

Pursuit™ UPS 2,4 columns couple highly efficient, fast separations with superior ease-of-use. They are designed for solvent applications and samples where lifetime and back pressure are important concerns.

Supplier: VARIAN

CP-Wax 51 for amines is designed for the analysis of C4-C10 amines, diamines and aromatic amines.

Supplier: VARIAN

Select mineral oil provides the shortest analysis time is required with a stabilized, non-polar bonded phase specifically for fast mineral oil analysis.

Supplier: VARIAN

Bond Elut™ NH₂ is a weak anion exchanger and is a good choice for retention of very strong anions that may be irreversibly retained on other anion exchange sorbents.

Supplier: VARIAN

Bond Elut™ PCB is a specially designed sorbent which allows for the facile extraction of polychlorinated biphenyl (PCB) compounds from a variety of matrices. Desired analytes can be loaded and eluted using a simple, single solvent method prior to analysis by GC/ECD.

Supplier: VARIAN

Polaris™ amide C18 has the greatest polarity of the Polaris™ C18 family. The amide polar groups offer a different selectivity from either the C18-A or C18-ether phases. The surface has been covalently modified with alkyl amide groups and endcapped.

Supplier: VARIAN

Bond Elut™ ENV, a PS/DVB polymer, is designed for the extraction of polar organic residues. It contains 125 μm spherical particles with a high degree of cross linking, advantageous for high volume, fast flow-through applications.

Supplier: VARIAN

Alumina, like silica, is an extremely polar sorbent. The alumina surface tends to be slightly more stable under high pH conditions than unfunctionalised silica. The small particle size of the Bond Elut™ Alumina range ensures high extraction efficiency even when small bed masses are used.

Supplier: Restek

Base-deactivated spherical silica that is optimised for UHPLC stability. Designed to resolve complex mixtures of polycyclic aromatic hydrocarbons (PAHs). Complete resolution of all 16 EPA 610 PAHs, plus two other routinely analyzed PAH compounds, in less than five minutes to greatly reduce run times and increase sample throughput.

Supplier: VARIAN

Bond Elut™ CH is a mid-polarity sorbent that exhibits unique selectivities for certain analytes. When employed as a non-polar sorbent, CH has the approximate polarity of a C₂ sorbent. Bond Elut™ CH is often a good choice when non-polar sorbents such as C₁₈, C₈ or C₂ do not provide the desired selectivity.

Supplier: VARIAN

Bond Elut™ PH is a non-polar bonded silica material which exhibits a different selectivity to alkyl or aliphatic functionalised phases such as C8 or cyclohexyl. The electron density present in the aromatic ring affords an enhancement in the retention of conjugated or aromatic ring-containing analytes due to desirable pi-pi interactions.

Supplier: VARIAN

The Bond Elut™ Certify extraction cartridge utilises a packed bed consisting of a special, non-polar C8 sorbent and a strong cation exchanger (SCX). Certify is most commonly used to extract basic (cationic) drugs from urine and blood, but it is also very effective for extraction of a wide range of compounds from a diverse range of aqueous matrices.

Supplier: VARIAN

Bond Elut™ Diol (2OH) resembles unbonded silica in its tendency for strong hydrogen bonding with analytes. 2OH can also be employed in the non-polar mode because the hydrocarbon spacer on its functional group provides enough non-polar character for retention of hydrophobic analytes. Bond Elut™ Diol is a listed SPE device for the DIN 14333-1 method on benzimidazole fungicides.