Du søgte efter: Kromatografikolonner
VWR har et stort udvalg af kromatografikolonner til bl.a. HPLC, LC-MS, UHPLC, GC, GPC og SFC til mange forskellige separations metoder såsom revers fase og HILIC. Kromatografikolonner separerer molekyler ved gas- eller væskekromatografiske metoder. Vi fører færdigpakkede preparative og analytiske kolonner med forskellige materialer og resiner i mange forskellige størrelser og brands.
HPLC columns, Allure® Biphenyl (USP L11)
Supplier: Restek
Highly retentive and selective for aromatic and unsaturated compounds. Increased retention and selectivity, compared to phenyl phases. Excellent selectivity for steroids, tetracyclines, explosives and other unsaturated compounds.
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Columns, MicroBore
Supplier: VARIAN
The microbore columns are ideal for use with detectors requiring low flow rates such as some mass
spectrometers and with capillary LC systems. Easily accommodates high temperatures for better selectivity and resolution between impurities and the target oligo.
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HPLC column, Roc Cyano
Supplier: Restek
This cyano is a traditional monomeric cyanopropylsilane that is recommended for assays where alternate selectivity, or confirmation, to a C18 or C8 column is desired. It can be used in normal phase, reversed phase (best with mobile phase pH between 5 and 7), and HILIC modes. It is an excellent choice for the analysis of protonated bases.
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Capillary columns, Rtx®-2330 (fused silica)
Supplier: Restek
High polar phase; biscyanopropyl cyanopropylphenyl polysiloxane, general-purpose columns for cis/trans FAMEs, dioxin isomers.
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Capillary columns, Rtx®-35 amine (fused silica)
Supplier: Restek
These application-specific, midpolarity phase, Crossbond 35% diphenyl/65% dimethyl polysiloxane, columns, are ideal for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics.
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GC Columns, Rt-bDEXm™
Supplier: Restek
Separations of more than one hundred chiral compounds have been achieved using our unique DEX columns, and DEX columns continue to demonstrate stability after hundreds of temperature program cycles. Permethylated beta cyclodextrin added into 14% cyanopropylphenyl / 86% dimethyl polysiloxane.
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GC columns, Rt®-βDEXsa (fused silica)
Supplier: Restek
The Rt®-βDEXsa columns have a unique selectivity for esters, lactones, and other fruit flavor components.
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Capillary columns, MXT®-1 SimDist
Supplier: Restek
These MXT®-1 SimDist methyl silicone polymer gives the correct retention time and boiling point curve.
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Capillary columns, MXT®-1
Supplier: Restek
MXT®-1 columns exhibit long lifetime and very low bleed at high operating temperatures. A proprietary synthesis process eliminates residual catalysts that could cause degradation and increase bleed.
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Gel permeation chromatography columns, PLgel MIXED
Supplier: VARIAN
Using these mixed columns you can eliminate mismatched column sets and spurious peaks for more reliable results. Every column contains a mixture of individual pore size materials, accurately blended to cover a specified broad range of molecular weight with a linear calibration to eliminate column mismatch. Simply add extra columns for even greater resolution.
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Capillary columns, Rtx®-2887
Supplier: Restek
These Rtx-2887 column's stationary phase, column dimensions, and film thickness have been optimised to exceed the resolution and skewing factor requirements. Individually tested to guarantee a stable baseline with low bleed and reproducible retention times.
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Solid phase extraction cartridges, Bond Elut™ C18
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.
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UHPLC columns, Pinnacle® DB PFP Propyl (USP L43)
Supplier: Restek
Pinnacle® DB PFP Propyl, a unique pentafluorophenyl phase with a propyl spacer, uses a highly base-deactivated spherical silica manufactured by Restek. This highly base-deactivated packing exhibits excellent peak shapes for a wide range of compounds, including nucleosides, nucleotides and halogenated compounds.
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HPLC columns, Viva PFP Propyl (USP L43)
Supplier: Restek
Viva PFP Propyl columns with a pentafluorophenyl propyl phase are ideal for retention and selectivity of charged bases, electronegative compounds and amine-containing compounds.
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UHPLC columns, Pinnacle® DB Biphenyl (USP L11)
Supplier: Restek
Highly base-deactivated spherical silica manufactured by Restek. Pinnacle® DB Phenyl columns offer alternate selectivity to straight chain hydrocarbon phases, especially for aromatic analytes. Replaces Hypersil® BDS Phenyl and Pinnacle® Phenyl Amine.
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HPLC columns, Allure® AK
Supplier: Restek
This highly retentive and selective phase is developed specifically for the analysis of aldehydes and ketones as DNPH derivatives. Allure® AK is a reversed phase HPLC material that has the unique ability to separate all 13 carbonyl compounds using a simple acetonitrile/water gradient.
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Capillary columns, Rtx®-PCB (fused silica)
Supplier: Restek
These proprietary Crossbond phase columns with unique polymer are suitable for PCBs analysis by GC-ECD or GC-MS.
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Capillary columns, Rtx®-biodiesel TG (fused silica)
Supplier: Restek
Rtx-Biodiesel TG (fused silica) columns with retention gaps feature Alumaseal® connectors to prevent leaks and extend column life.
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Columns, D3606 application set
Supplier: Restek
Packed, 2 column set gives complete resolution of benzene from ethanol, no compromising coelutions and for accurate quantification of benzene and toluene.
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GC Columns, Rxi-PAH Columns (fused silica)
Supplier: Restek
The Rxi-PAH GC columns were designed with a higher phenyl-content stationary phase that provides unique selectivity to separate important polycyclic aromatic hydrocarbons (PAH) for food safety that cannot be distinguished by mass spectrometry.
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Solid phase extraction cartridges, Bond Elut™ AccuCAT
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.
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Capillary columns, CP-SilicaPLOT
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.
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Solid phase extraction cartridges, Bond Elut™ PSA
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.
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Solid phase extraction cartridges, Bond Elut™ CBA
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.
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Capillary columns for ASTM method
Supplier: VARIAN
Column type: GC kolonne, Columns for analysing PCBs in insulating liquids, Ø indv.: 0,25 mm, Længde: 50 m, Filmtykkelse: 0,25 µm
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Capillary columns, CP-Volamine™
Supplier: VARIAN
CP-Volamine is optimized for the separation of volatile amines.
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GC columns, J&W CP-Sil 24 CB
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.
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Capillary columns, VF-DA
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.
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Capillary columns, VF-624ms
Supplier: VARIAN
VF-624ms columns set a new standard for the analysis of volatile organic compounds.
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Solid phase extraction cartridges, Bond Elut™ Focus
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.