You searched for: Chromatography Columns

Supplier: VARIAN

CP-Sil 5/C₁₈ CB for PCB has a lower polarity than 100% polydimethylsiloxane due to its C₁₈ substitutions. Due to the absence of cyano groups it provides high signal-to-noise ratios for ECD detectors.

Supplier: VARIAN

CP-Sil 5 CB for Formaldehyde is optimized for the analysis of formaldehyde, water and methanol, and can deliver trace analysis of sulfur compounds and partial permanent gases.

Supplier: VARIAN

Bond Elut™ C2 is a fairly non-polar sorbent because of the short chain length of the functional group. C2 is often used during the process of method development if analytes are retained too strongly on a C8 or C18 phase. The polarity of C2 is slightly lower than a cyano phase for polar interactions.

Supplier: VARIAN

Bond Elut™ C18 is the most hydrophobic, bonded silica sorbent in the Bond Elut™ range. It is the most popular SPE sorbent because of its extremely retentive nature for non-polar compounds. C18 is generally regarded as having the broadest spectrum of retention among bonded silica sorbents, since it retains most organic analytes from aqueous matrices. When analysing small to intermediate molecules, Bond Elut™ C18 can be used for desalting aqueous matrices prior to ion exchange, as salts pass through the sorbent unretained.

Supplier: VARIAN

Column type: GC column, Columns used for cumene analysis, Ø int.: 0,53 mm, Length: 50 m

Supplier: VARIAN

CP-Volamine is optimized for the separation of volatile amines.

Supplier: VARIAN

VF-624ms columns set a new standard for the analysis of volatile organic compounds.

Supplier: VARIAN

CP-Sil 24 CB is a medium polarity column with no cyano groups, making it ideal for use with ECD, and perfect for confirmation in drug and pesticide analysis.

Supplier: Restek

Application-specific columns for volatile organic pollutants. Recommended in U.S. EPA methods for volatile organic pollutants.

Supplier: VARIAN

CP-SilicaPLOT brings the benefits of capillary PLOT columns (higher efficiency and faster analysis time) to many applications that previously could only be done by packed columns.

Supplier: VARIAN

VF-DA is a unique, guaranteed low bleed FactorFour GC column for drugs of abuse confirmation testing. The VF-DA column has high recovery for trace components and excellent resistance to direct methanol injections.

Supplier: VARIAN

CBA is a mid-polarity sorbent and weak cation exchanger (pKa 4,8). It can be used with a wider range of counter-ions than lower pKa sorbents like SCX and will demonstrate easier elution of quaternary amine functionalised analytes.

Supplier: VARIAN

Bond Elut™ Focus solid phase extraction cartridges with enhanced polar recovery. Features a unique amide functionalised polar-enhanced sorbent technology that delivers outstanding retention for polar and non-polar analytes.

Supplier: VARIAN

Bond Elut AccuCAT cartridges are mixed bed SPE cartridges consisting of a strong cation exchange (SCX) and a strong anion exchange (SAX) sorbent packed into one bed. AccuCAT is effective for the extraction of acidic, basic and neutral analytes from urine and other biological samples. AccuCAT is particularly effective for catecholamine extraction from bio fluids.

Supplier: VARIAN

Bond Elut™ PSA is an alkylated amine sorbent that contains two different amino functionalities, one secondary and one primary. This gives a slightly higher pKa and ionic capacity compared to Bond Elut™ NH₂. The PSA functional group is a very effective bidentate ligand and is therefore an excellent sorbent for chelation applications. PSA has a significantly higher carbon load than most amino functional sorbents and thus is a better choice for polar compounds, which retain too strongly on Bond Elut™ NH₂.

Supplier: VARIAN

CP-PoraPLOT Q is recommended for column switching systems that analyze polar and apolar volatile compounds.

Supplier: VARIAN

5% phenyl 95% dimethylpolysiloxane low bleed phase

Supplier: VARIAN

Rapid-MS columns reduce analysis duration by 3 to 5 times for temperature programmed, and up to 10 times for isothermal runs.

Supplier: VARIAN

Select Permanent Gases/CO₂ is a set of two parallel columns that combines CP-Molsieve 5 Å for permanent gas analysis and CP-PoraBOND Q for CO₂ analysis.

Supplier: VARIAN

The CP-Select 624 CB is a highly reproducible version of the popular 624 phase and has 2-3 times lower bleed than conventional 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

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

Supplier: VARIAN

These specialty solid phase extraction cartridges provide higher retention of small organics, including those that are too polar to retain on C18 or polymeric SPE.

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

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™ 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

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: 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™ 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.