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1859 resultater for Kromatografikolonner

Du søgte efter: Kromatografikolonner

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.

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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™ 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, CP-Cyclodextrin-β-2,3,6-M-19

Capillary columns, CP-Cyclodextrin-β-2,3,6-M-19

Supplier: VARIAN

The CP-Cyclodextrin-β-2,3,6-M-19 column separates many optical isomers that could not be analyzed previously.

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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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Capillary columns, CP-Lowox

Capillary columns, CP-Lowox

Supplier: VARIAN

CP-Lowox offers a unique solution to the chemical and petrochemical industries. It is now possible to analyze trace level oxygenate impurities in gas and liquid hydrocarbon streams.

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PLOT columns, CP-PoraPLOT Amines

PLOT columns, CP-PoraPLOT Amines

Supplier: VARIAN

CP-PoraPLOT Amines is a unique column specially designed for the high retention analysis of very volatile amines.

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Omnifit® EZ SolventPlus™ Glass Chromatography Columns for FPLC and LPLC

Supplier: OMNIFIT

EZ SolventPlus™ columns are designed for maximum chemical compatibility. Borosilicate glass and PTFE construction, with Chemraz® o-rings and PTFE frits, only the most inert materials are present in the fluid path. ETFE end caps and fitting nuts ensure a chemically inert connection into and out of the system.

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Empty solid phase extraction cartridges with two frits, Bond Elut™

Empty solid phase extraction cartridges with two frits, Bond Elut™

Supplier: VARIAN

Clean PP reservoirs contain two PP frits pre-inserted, an ideal configuration for simple filtration.

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Solid phase extraction cartridges, Bond Elut™ C2

Solid phase extraction cartridges, Bond Elut™ C2

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.

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Capillary columns, CarboBOND and CarboPLOT P7

Capillary columns, CarboBOND and CarboPLOT P7

Supplier: VARIAN

These carbon-based PLOT columns offer a simplified solution for ASTM D 2505, which describes the measurement of ppm CO and CO₂ in ethylene and propylene streams.

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Capillary columns, CP-TAP CB for triglycerides

Capillary columns, CP-TAP CB for triglycerides

Supplier: VARIAN

CP-TAP CB is available in special fused silica for maximum column strength at temperatures up to 370 °C, or UltiMetal capillary for the ultimate robustness.

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Capillary columns, PLOT

Capillary columns, PLOT

Supplier: VARIAN

Aluminum oxide PLOT columns offer high selectivity for separating ppm levels of C1 to C5 hydrocarbons in a main stream of C1 to C5 hydrocarbons.

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Capillary columns, CP-Sil PAH CB UltiMetal

Supplier: VARIAN

The UltiMetal CP-Sil PAH CB column combines the advantages of a highly thermo-stable stationary phase with UltiMetal as the column material.

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GC columns J&W CP-Wax 52 CB

GC columns J&W CP-Wax 52 CB

Supplier: VARIAN

CP-Wax 52 provides higher resolution of low boiling point analytes, and is ideal for a variety of EPA and ASTM methods.

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Capillary columns, VF-Xms

Capillary columns, VF-Xms

Supplier: VARIAN

VF-Xms delivers the ultimate in sensitivity and signal-to-noise ratio, and is the low bleed, more polar alternative.

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GC columns, J&W CP-1301

Supplier: VARIAN

Agilent JW CP-1301 is a medium polarity column ideal for the analysis of herbicides, pesticides, and many pharmaceutical products.

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Capillary columns, Select Biodiesel

Capillary columns, Select Biodiesel

Supplier: VARIAN

Select Biodiesel columns address the key challenge of good column lifetime when operating at very high temperatures up to 400 °C.

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Capillary columns, CP-Sil 5/C₁₈ CB for PCB

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.

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Capillary columns, CP-Sil 8 CB for pesticides

Supplier: VARIAN

CP-Sil 8 CB delivers a linear column response down to femtogram levels.

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Capillary columns, CP-SimDist

Supplier: VARIAN

CP-SimDist Fused Silica columns are guaranteed for simulated distillation up to C100.

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Capillary columns, CP-Wax 57 CB

Capillary columns, CP-Wax 57 CB

Supplier: VARIAN

CP-Wax 57 CB for Glycols and Alcohols is guaranteed for the analysis of glycols, diols and alcohols. It has a unique, high polarity wax phase that produces symmetrical peaks.

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Capillary columns, CP-TCEP for alcohols in gasoline

Capillary columns, CP-TCEP for alcohols in gasoline

Supplier: VARIAN

CP-TCEP column is able to separate benzene after n-dodecane. In addition, the excellent separation power provides the necessary resolution for complex mixtures such as gasoline.

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Capillary columns, VF-5 Pesticides and VF-1701 Pesticides

Capillary columns, VF-5 Pesticides and VF-1701 Pesticides

Supplier: VARIAN

These columns are specially designed for the determination of trace levels of pesticide residue.

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Capillary columns, CP-Sil 5 CB for Formaldehyde

Capillary columns, CP-Sil 5 CB for Formaldehyde

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.

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Capillary columns, CP-Sil 88 for FAME

Capillary columns, CP-Sil 88 for FAME

Supplier: VARIAN

Guaranteed analysis of FAME cis/trans isomers for complete confidence.

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Solid phase extraction cartridges, Bond Elut™ C1

Solid phase extraction cartridges, Bond Elut™ C1

Supplier: VARIAN

Due to the methyl group and subsequent low carbon load, Bond Elut™ C1 is the least retentive of all alkyl group bonded phases for non-polar compounds. However, due to the extensive end capping of this sorbent to mask polar silanol activity, retention and elution of polar and multi-functional analytes can still be achieved. Typical applications include plasma, urine and aqueous samples.

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PLOT columns, CP-PoraPLOT U and CP-PoraPLOT S

PLOT columns, CP-PoraPLOT U and CP-PoraPLOT S

Supplier: VARIAN

CP-PoraPLOT U and CP-PoraPLOT S provide symmetrical peaks from polar and non-polar volatiles for ultimate accuracy.

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Capillary columns, CP-SimDist UltiMetal

Capillary columns, CP-SimDist UltiMetal

Supplier: VARIAN

Lower bleed rate than Fused Silica, best column lifetime and accurate results.

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Capillary columns, CP-Molesieve 5Å

Capillary columns, CP-Molesieve 5Å

Supplier: VARIAN

This molecular-sieve coated capillary column is especially valuable when separating permanent gases.

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Capillary columns, CP-Al₂O₃/Na₂SO₄

Capillary columns, CP-Al₂O₃/Na₂SO₄

Supplier: VARIAN

CP-Al₂O₃/Na₂SO₄ is an aluminum oxide PLOT column that offers high selectivity for separating ppm levels of C₁ to C₅ hydrocarbons in a main stream of C₁ to C₅ hydrocarbons. The Na₂SO₄ deactivation salt provides a polar Al₂O₃ surface, so that unsaturated compounds such as ethylene and acetylene are retained longer. These columns analyse more compounds in a single run than packed columns, while still delivering higher resolution and faster analysis times. When compared to liquid stationary phases, CP-Al₂O₃ provides increased selectivity and allows all C₁ to C₅ hydrocarbon isomers to be separated. CP-Al₂O₃ operates without the need for sub-ambient cooling.

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