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Du sökte efter: Kromatografikolonn

Kromatografikolonn

Kromatografikolonner separerar molekyler under gas- eller vätskemetoder. Färdigpackade kolonner finns med olika stationärfaser och resiner. De färdigpackade kolonnerna står emot temperatur- och tryckvariationer som uppstår när mobilfasen trycks genom kolonnen. Det finns kromatografikolonner för preparativa och analytiska metoder för att separera komponenter baserad på individuell polaritet, sammansättning och storlek.

GC columns, J&W CP-Wax 58 FFAP CB

Supplier: VARIAN

Agilent JW CP-Wax 58 FFAP CB column is a nitroterephthalic acid-modified, chemically bonded polyethylene glycol phase.

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Capillary columns, VF-WAXms

Capillary columns, VF-WAXms

Supplier: VARIAN

VF-WAXms is a high performance column for applications in the food, flavours and fragrances markets, and especially where trace analyses are required.

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Capillary columns, CP-Sil 8 CB for amines

Capillary columns, CP-Sil 8 CB for amines

Supplier: VARIAN

CP-Sil 8 CB for amines is a base-deactivated 5% phenyl polydimethylsiloxane column that can be used for a wide range of amines.

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Capillary columns, Stabilwax®

Capillary columns, Stabilwax®

Supplier: Restek

General purpose columns for FAMEs, flavor compounds, essential oils, solvents, xylene isomers and US EPA Method 603 (acrolein/acrylonitrile).

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Capillary columns, VF-23ms

Capillary columns, VF-23ms

Supplier: VARIAN

VF-23ms features a unique combination of high polarity and low bleed to enable more accurate analysis of very polar analytes.

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Capillary columns, Select PAH

Capillary columns, Select PAH

Supplier: VARIAN

Select PAH is the first capillary column that provides a single solution for PAH analysis by separating all the isomers, thereby avoiding false positives and inaccurate results.

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Capillary columns, Rtx®-BAC Plus 2 (fused silica)

Capillary columns, Rtx®-BAC Plus 2 (fused silica)

Supplier: Restek

These application-specific columns for blood alcohol analysis baseline separate all critical compounds - including ethanol, methanol, acetone, tert-butanol, acetaldehyde, isopropanol, and n-propanol - in less than two minutes.

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Solid phase extraction cartridges, Bond Elut™ LMS

Supplier: VARIAN

Bond Elut™ LMS polymeric sorbent lets you elute without having to add amine modifiers, buffers, or acids. The elimination of secondary interactions means that elution of analytes can be achieved with pure organic solvents or HPLC mobile phase-compatible solvent mixtures of low ionic strength. These characteristics are crucial to allow compatibility with LC/MS or other delicate analytical techniques.

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Capillary columns, Rtx®-50 (fused silica)

Supplier: Restek

General purpose columns for pesticides, herbicides, rosin acids, phthalate esters, sterols. The high thermal stability of Rtx®-50 columns makes dual column analysis possible with common phases such as Rtx®-1 or Rtx®-5MS.

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Capillary columns, Rtx®-1301

Supplier: Restek

General purpose columns for residual solvents, alcohols, oxygenates and volatile organic compounds.

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MPLC cartridge columns, Brownlee™

Supplier: PerkinElmer

The MPLC cartridge system allows direct coupling of an analytical and NewGuard™ cartridge without introduction of any dead volume. A specific cartridge holder (30, 100, 220 mm) is required for each cartridge length.

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Omnifit® EZ Glass Chromatography Columns for FPLC and LPLC

Supplier: OMNIFIT

EZ columns are designed to suit the majority of standard laboratory chromatography applications. They are ideal for aqueous systems and compatible with solvents used in common liquid chromatography applications such as protein purification.

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Solid phase extraction cartridges, Bond Elut™ Mycotoxin

Supplier: VARIAN

Bond Elut™ Mycotoxin is a novel sorbent which cleans up food extracts for improved trichothecene and zearalenone analysis. Results are comparable or superior to competing methods, including immunoaffinity columns (IaC) and charcoal/alumina columns. The sorbent is a proprietary silica-based ion exchange material.

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Flash guard cartridge, silica, Reveleris®

Supplier: BUCHI

Column type: Flash/LPLC column, Silica, Flash cartridge, Reveleris®, Partikelstorlek: 40 µm, Bäddvikt: 24 g

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Glass column for column elution

Supplier: BEHR

Glass column with GL45 on both ends, GS 950, according to LUA bulletin no. 20, Innerdiam: 60,00 mm, Längd: 320 mm, Volym: 950 ml

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Capillary columns, VF-17ms

Capillary columns, VF-17ms

Supplier: VARIAN

VF-17ms is a 50% phenyl, 50% dimethylpolysiloxane, medium polarity, low bleed column for increased sensitivity, accuracy and instrument uptime.

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HPLC columns

Supplier: VICI JOUR RESEARCH

These PEEK columns are designed for naro-bore applications with small amount of samples.

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Analytical guard column, Upchurch Scientific®

Analytical guard column, Upchurch Scientific®

Supplier: UPCHURCH SCIENTIFIC

This narrow-bore short column (2,0×20 mm) creates only a slight pressure increase with virtually no detectable theoretical plate loss when used with a 3 mm int.Ø or larger column.

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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-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-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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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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Capillary columns, CP-Select CB for MTBE

Supplier: VARIAN

Ideal as primary or confirmation column.

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Solid phase extraction cartridges, Bond Elut™ CN-E

Supplier: VARIAN

A medium polarity sorbent with many uses, Bond Elut™ CN-E is ideal for applications in which extremely non-polar compounds would be irreversibly retained on high carbon load sorbents such as C₈ and C₁₈. This endcapped version of the cyano sorbent is best utilised when extracting analytes from an aqueous matrix.

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Solid phase extraction cartridges, Bond Elut™ CN-U

Supplier: VARIAN

Bond Elut CN-U is ideally suited for the extraction of polar compounds from a nonpolar matrix, such as hexane or oils. It is suitable for very polar analytes that may be irreversibly retained on SI or Diol (2OH) SPE phases.

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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-Chirasil Val

Capillary columns, CP-Chirasil Val

Supplier: VARIAN

The CP-Chirasil Val columns are designed for the separation of optically active compounds, especially amino acids. They have lower bleed levels than other phases with a Tmax of 200 °C, isothermally and programmed.

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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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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, 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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