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1752 results for Chromatography Columns

You searched for: Chromatography Columns

Chromatography Columns

Chromatography columns separate molecules within mixtures during gas or liquid chromatography. Filled with stationary phase compositions or chemical compounds, the prepacked options reduce the preparing time required. The vertical pieces are able to withstand extreme temperatures and pressure fluctuations experienced when the mobile phase is forced through the medium. Meet preparative and analytical laboratory procedures with the chromatography columns to separate dissimilar moving components based on individual solvent polarity, composition, and size. The right chromatography control system allows to automate the delivery of cleaning, sanitizing and conditioning buffers to the packed column, and can enable to cycle the chromatography column several times during the batch, requiring smaller columns and subsequent lower capital investment.

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Analytical HPLC columns, Microsorb™ C18

Supplier: VARIAN

Microsorb™ C18 is an octadecylsilane-covered silica that has been bonded using monofunctional bonding agents under optimised conditions. This material is then endcapped with trimethylsilyl groups to minimise nonspecific binding, maximise mass recoveries and improve peak shape.

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Capillary columns, CP-Sil

Capillary columns, CP-Sil

Supplier: VARIAN

The CP-Si™l line consists of a range of stationary phases which are based on a polysiloxane backbone. Functional groups are added to the polymer to introduce selectivity. Each polymer used for the CP-Sil line is manufactured in-house and is optimised to obtain highest degree of reproducibility.

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Capillary columns, CP-Chirasil-Dex CB

Capillary columns, CP-Chirasil-Dex CB

Supplier: VARIAN

The CP-Chirasil-Dex CB phase consists of cyclodextrin directly bonded to dimethylpolysiloxane. This bond prevents the cyclodextrin from migrating to different locations in the surface film, delivering homogeneous enantioselectivity throughout the phase.

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Solid phase extraction cartridges, Bond Elut™ Sodium Sulphate Drying

Supplier: VARIAN

Bond Elut™ Jr cartridges have top and bottom Luer fittings allowing easy sample processing when used in conjunction with standard SPE cartridges. Bond Elut™ LRC cartridges have a large reservoir above the sorbent bed and are suitable for use on any standard SPE vacuum manifold.

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Solid phase extraction cartridges, Bond Elut™ PRS

Supplier: VARIAN

Bond Elut™ PRS is a strong cation exchange sorbent that is also relatively high in polarity. With no appreciable degree of hydrophobicity, in non-polar solvents, PRS is capable of polar and hydrogen bonding interactions. Due to the very low pKa of PRS, a high ionic strength eluent must be used, and so the use of PRS is recommended for weaker cationic species such as pyridinium compounds.

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Solid phase extraction cartridges, Bond Elut™ PBA

Supplier: VARIAN

PBA is a unique sorbent consisting of a phenylboronic acid covalently linked to a silica gel surface. Covalent processes result in a higher retention to the sorbent surface than other mechanisms, resulting in superior clean-up. The boronate group has a high specificity for cis-diol containing compounds such as catechols, nucleic acids, low molecular weight proteins and carbohydrates.

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Solid phase extraction cartridges, Bond Elut™ Plexa

Supplier: VARIAN

The water-wettable, hydroxylated exterior allows excellent flow, even with biological fluids. A gradient of polarity on the polymer surface shunts small analytes to the more hydrophobic centre of the polymer bead, where they are retained prior to the washing and elution steps. Plexa provides these performance enhancements due to a unique polymeric architecture with a non-retentive, hydroxylated, amide-free surface and a non-polar PS/DVB core for retaining small molecules.

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Solid phase extraction cartridges, Bond Elut™ Certify II

Supplier: VARIAN

Bond Elut™ Certify II was developed specifically for the rapid and effective extraction of acidic drugs and metabolites from urine and other biological matrices. Certify II is a mixed-mode cartridge packed with non-polar C8 and strong anion exchange (SAX) sorbent. It has been optimised for acidic drugs such as 11-nor-delta-9-tetrahydrocannibinol-carboxylic acid, salicylic acid, ibuprofen, acetaminophen and other compounds that possess both non-polar and anionic characteristics.

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Capillary columns, DB-1

Capillary columns, DB-1

Supplier: Agilent

These columns contain 100% dimethylpolysiloxane.

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Capillary columns, VF-1701ms

Capillary columns, VF-1701ms

Supplier: VARIAN

GC column for pesticides, PCBs and semi-volatile organic compounds.

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Capillary columns, CP-Sil 5 CB for Sulphur

Capillary columns, CP-Sil 5 CB for Sulphur

Supplier: VARIAN

Column type: GC column, CP-Sil 5 CB for Sulfur, Ø int.: 0,32 mm, Length: 30 m, Film thickness: 4,00 µm

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Capillary columns, VF-5ms

Capillary columns, VF-5ms

Supplier: VARIAN

VF-5ms is a highly inert 5% phenyl-methyl column for increased sensitivity, accuracy and instrument uptime.

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Empty solid phase extraction cartridges, Bond Elut™

Empty solid phase extraction cartridges, Bond Elut™

Supplier: VARIAN

Bond Elut empty SPE cartridges are made with high purity polypropylene for cleaner extracts.

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Capillary columns, CP-Sil 88 for Dioxins

Supplier: VARIAN

The CP-Sil 88 column has a very high polarity and a specific selectivity for dioxins and dibenzofuran separations.

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Capillary columns, select silanes

Supplier: VARIAN

The Select Silanes column is a stabilized trifluoropropyl-methyl polysiloxane phase optimized for silanes determination. The Select Silanes column has a very thick film, resulting in high capacity and retention for highly volatile silanes.

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Plus C8 columns, ZORBAX® Eclipse

Plus C8 columns, ZORBAX® Eclipse

Supplier: Agilent

ZORBAX® Eclipse Plus HPLC columns are the ideal first choice for method development of all samples.

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Capillary columns, CP-Wax™

Capillary columns, CP-Wax™

Supplier: VARIAN

The CP-Wax™ lines of chemically bonded columns offer a broad range of selectivities for method optimisation. The backbone of this series stationary phases is made of a polyethylene glycol.

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HPLC columns, Polaris™ Si-A

Supplier: VARIAN

Polaris™ silica is ideal for the rapid separation of low molecular weight compounds that are soluble in organic solvents.

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Capillary columns, Select Al₂O₃ MAPD

Capillary columns, Select Al₂O₃ MAPD

Supplier: VARIAN

The select Al₂O₃ MAPD is an aluminum oxide PLOT column for the analysis of reactive hydrocarbons and is especially targeted towards the response for methyl acetylene and propadiene (MAPD).

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Flash cartridges, Mega Bond Elut™

Supplier: VARIAN

Flash cartridges for the purification of organic compounds, and also for scale-up, solid phase extraction.

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SPE cartridges, SPEC disk

Supplier: VARIAN

SPEC Disk SPE delivers superior flow characteristics and trouble free automation.

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GC Columns, J&W CP-Sil 43 CB

Supplier: VARIAN

CP-Sil 43 CB separates aromatic from aliphatic hydrocarbons with moderate polarity for specific selectivity equivalent to OV-255.

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SPE columns, ISOLUTE® NH₂

Supplier: Argonaut Technologies

ISOLUTE® NH₂ is a non-polar and non-endcapped sorbent, manufactured using a trifunctional silane.

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Solid phase extraction cartridges, Bond Elut™ Florisil

Supplier: VARIAN

Florisil is a magnesia-loaded silica gel, extremely polar in nature and ideal for the isolation of polar compounds from non-polar matrices.

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Solid phase extraction cartridges, Bond Elut™ SPEC

Solid phase extraction cartridges, Bond Elut™ SPEC

Supplier: VARIAN

SPEC SPE solid phase extraction cartridges available in standard straight barrel tube format, offering flexibility in sample size. Use on any standard vacuum manifold such as the Vac Elut 20 or SPS 24.

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Solid phase extraction cartridges, EnvirElut™

Supplier: VARIAN

EnvirElut™ sorbents are specially designed for the extraction of a wide range of compounds from aqueous matrices. EnvirElut™ PAH and Pesticides are available in standard SPE straight barrel cartridges, which can be used on conventional vacuum manifolds such as the Vac Elut SPS 24.

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HPLC columns, PLRP-S

HPLC columns, PLRP-S

Supplier: VARIAN

The PLRP-S family of products consists of a range of pore sizes and particle sizes, all with identical chemistry and fundamental adsorptive characteristics. The particles are inherently hydrophobic so there is no bonded phase, alkyl ligand required for reversed-phase separations. This gives a highly reproducible material that is free from silanols and heavy metal ions. Within the extensive product range are columns suitable for analytical separations and preparative purifications.

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Solid phase extraction cartridges, Bond Elut™ Plexa PCX

Supplier: VARIAN

Bond Elut™ Plexa PCX uses a polymeric cation exchange resin that combines the outstanding properties of Bond Elut™ Plexa - superior flow characteristics and improved analytical performance - with strong cation exchange functionalities. This mixed-mode SPE sorbent removes neutral and acidic interferences from the matrix, concentrates basic analytes and therefore improves sensitivity in the determination of basic compounds.

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Solid phase extraction cartridges, Bond Elut™ DEA

Supplier: VARIAN

Bond Elut™ DEA bears some resemblance to Bond Elut™ NH₂ in its properties but with a slightly lower capacity as an anion exchange sorbent. DEA has a moderately non-polar character due to the alkyl side chains on the amino functionality. These groups still afford a medium level of polarity, higher than C₈ but less polar than C₂ or CN-E.

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Solid phase extraction cartridges, Bond Elut™ SCX

Supplier: VARIAN

Bond Elut™ SCX is a strong cation exchanger with a very low pKa. Although the pKa is similar to Bond Elut™ PRS, the presence of the benzene ring in the functional group increases the potential for non-polar interactions. This non-polar characteristic becomes particularly important when conducting ion-exchange from aqueous systems, where selectivity towards compounds exhibiting cationic and non-polar character is seen.

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