You searched for: 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.
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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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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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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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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HPLC columns, Eurospher I
Supplier: KNAUER
These endcapped Eurospher I columns are used in the determination of water soluble vitamins, steroids, catecholamines, sedatives and many other applications fields.
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HPLC conventional columns, Brownlee™ Spheri-5®
Supplier: PerkinElmer
Small pore silica-based sorbent used for separation of small molecules. Non-functional and polyfunctional C8 and C18 are available.
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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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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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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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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
Supplier: VARIAN
Column type: GC column, CP-Sil 5 CB for Sulfur, Innerdiam: 0,32 mm, Längd: 30 m, Skikttjocklek: 4,00 µm
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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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Capillary columns, Rxi®-17Sil MS columns (fused silica)
Supplier: Restek
These fused silica columns have midpolarity Crossbond® phase manufactured for column to column reproducibility suited for validated methods.
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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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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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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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Capillary Columns, VF-1ms
Supplier: VARIAN
VF-1ms is a highly inert, non-polar, low bleed GC column providing increased sensitivity over a broad array of applications.
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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, VF-35ms
Supplier: VARIAN
VF-35ms is a medium polarity column, which is the ideal choice for trace environmental and chemical analyses, and as a confirmation column.
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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™ 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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Superficially porous particle (SPP) columns, Brownlee™ C18
Supplier: PerkinElmer
These superficially porous particle (SPP) columns produce sharper peaks and faster separation results due to their breakthrough particle design and size.
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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-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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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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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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UHPLC columns, Ultra C18 (USP L1)
Supplier: Restek
Ultra C18 is a general purpose reversed phase column with retentive and high-purity packing that exhibits excellent peak shape for a wide range of compounds.
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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.