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8996 resultat för "VARIAN"

8996 Resultat för: "VARIAN"

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Solid phase extraction cartridges, Bond Elut™ SAX

Supplier: VARIAN

Bond Elut™ SAX is a strong anion exchange sorbent ideally suited for the extraction of compounds such as carboxylic acids, which may not retain effectively on weak anion exchange sorbents. The sorbent is supplied in the chloride counter ion form. You can modify the selectivity of the phase by replacing the chloride ion with other anions, such as acetate and hydroxide.

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Solid phase extraction cartridges, Bond Elut™ SI

Supplier: VARIAN

Native silica is generally regarded as the most polar SPE sorbent available. Bond Elut™ SI is particularly effective at separating compounds with a very similar structure. Applying the analytes in a non-polar solvent, then increasing the solvent polarity by increasing the concentration of a polar modifier, such as THF or ethyl acetate, delivers effective separations.

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Strong anion exchange HPLC columns, PL-SAX

Strong anion exchange HPLC columns, PL-SAX

Supplier: VARIAN

These columns are ideal for the anion exchange HPLC separations of proteins and deprotected synthetic oligonucleotides under denaturing conditions.

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Solid phase extraction cartridges, Bond Elut™ NH₂

Supplier: VARIAN

Bond Elut™ NH₂ is a weaker anion exchanger than sorbents such as SAX (a quaternary amine sorbent that is always charged) and is therefore a better choice for retention of very strong anions, such as sulfonic acids, which may retain irreversibly on a SAX sorbent. Similar to Diol and SI sorbents, Bond Elut™ NH₂ is excellent for the separation of structural isomers.

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High efficiency GC columns

High efficiency GC columns

Supplier: VARIAN

High efficiency 0,15 and 0,18 mm Int.Ø columns are a simple and cost effective way to increase sample throughput with existing GC or GC/MS instruments.

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Analytical HPLC columns, Microsorb™ Si

Supplier: VARIAN

Microsorb™ Silica is ideal for the separation of low molecular weight compounds that dissolve in organic solvents. Separations on silica columns depend upon the difference in orientation, type and number of functional groups associated with the compounds in the sample.

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Capillary columns, Select FAME

Capillary columns, Select FAME

Supplier: VARIAN

The Select FAME column is tuned for optimal cis-trans separations of FAMEs, especially C₁₈ isomers.

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Capillary columns, CP-Sil 19 CB for pesticides

Supplier: VARIAN

Ideal as a confirmation column for reliable results.

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Solid phase extraction cartridges, Bond Elut™ C18 EWP

Supplier: VARIAN

Bond Elut™ EWP is based upon standard particle size silica but with 500 Å pores to allow more efficient extraction of large molecules (>15000 MW), which are typically excluded from standard porosity silica phases.

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Well plate tubes for Bond Elut C18 OH plates

Supplier: VARIAN

VersaPlate™, VersaPlate well plate tubes, C18 OH, 100 mg

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Ferrules for gas chromatography

Ferrules for gas chromatography

Supplier: VARIAN

Vespel/graphite and precision graphite ferrules for chromatography applications.

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Capillary columns, CP-FFAP CB

Capillary columns, CP-FFAP CB

Supplier: VARIAN

Columns for free fatty acids in dairy products.

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Solid phase extraction cartridges, Bond Elut™ C8

Supplier: VARIAN

Bond Elut™ C8 is very similar in properties to C18, but is not as retentive for non-polar compounds, due to its shorter hydrocarbon chain, and therefore reduced carbon loading. C8 is an excellent replacement for C18 when analytes are too strongly retained for effective elution. The potential for polar interactions is somewhat higher than for C18 because there is less coverage of the silica surface. These polar interactions are not, however, a significant property of C8.

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Solid phase extraction cartridges, Bond Elut™ C18 OH

Supplier: VARIAN

Bond Elut™ C18 OH is a non-end capped version of the octadecyl bonded phases that enables the silanols on the silica surface to be more active. This low-load C18 has well-controlled silanol activity that permits the fractionation of metabolites and enhances retention of basic compounds compared to an endcapped C18. The pore size makes it a good choice for peptide extraction.

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Accessories for SPE plates, OMIX 96-well VersaPlate™

Accessories for SPE plates, OMIX 96-well VersaPlate™

Supplier: VARIAN

Basplatta för VersaPlate™-rör, 96-brunnars

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Gas sampling bags, tedlar®,

Supplier: VARIAN

Gas sampling bags in Tedlar.

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Guard columns, EZ-Guard™

Guard columns, EZ-Guard™

Supplier: VARIAN

EZ-Guard columns combine a FactorFour column with a built-in guard column.

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Capillary columns, CP-Sil PONA CB

Supplier: VARIAN

CP-Sil PONA CB delivers accurate analysis of paraffins, olefins, naphthalenes and aromatics in complex hydrocarbon mixtures.

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Capillary columns, CP-Wax for volatile amines and diamines

Capillary columns, CP-Wax for volatile amines and diamines

Supplier: VARIAN

CP-Wax for volatile amines and diamines is optimised for analysis of volatile amines and diamines, particularly C3-C8 amines and diamines. The column delivers symmetrical peaks due to basic reagent deactivation and exhibits good inertness towards basic compounds.

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Capillary columns, CP-Squalane

Supplier: VARIAN

CP-Squalane gives the best separation of C₄-C₁₀ hydrocarbons.

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Capillary columns, CP-Carbowax 400

Supplier: VARIAN

CP-Carbowax 400 has highest resolution for amyl alcohols for accurate quality inspection.

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Capillary columns, CP-Sil 88

Capillary columns, CP-Sil 88

Supplier: VARIAN

CP-Sil 88 columns have high selectivity towards positional and geometric isomers for ease-of-use.

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GC columns, J&W PoraBOND U

GC columns, J&W PoraBOND U

Supplier: VARIAN

PoraBOND U is a highly stable polar-bonded porous polymer with the maximum temperature extended from 190 to 300 °C.

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SPEC 96-well plates

SPEC 96-well plates

Supplier: VARIAN

Solid Phase Extraction (SPE) plate, SPEC 96-well plate, Kiselbaserade absorbenter, 15 mg

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HPLC columns, MetaCarb

Supplier: VARIAN

The MetaCarb™ line of carbohydrate columns provides high resolution columns for applications requiring high performance carbohydrate and organic acid analysis. These columns contain sulfonated polystyrene resins in the Calcium (87C), Hydrogen (87H), and Lead (87P) forms, and provide a wide range of selectivities for carbohydrate and organic analysis. They are widely used in the food and beverage industries for analysis of sweeteners, corn and cane sugars, fruit juices, soft drinks, beer and dairy products.

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UV-Vis certified calibration standards

Supplier: VARIAN

These UV-Visible calibration standards and kits provide an inexpensive and time-saving solution for calibrating and qualifying UV-Vis instrumentation.

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Well plate tubes for Bond Elut NEXUS and Bond Elut NEXUS WCX plates

Supplier: VARIAN

VersaPlate well plate tubes, NEXUS, 60 mg

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O-rings for McDowell 2-112-S0604-70

Supplier: VARIAN

O-ring, McDowell 2-112-S0604-70

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Gel permeation chromatography columns, PolarGel

Supplier: VARIAN

The PolarGel range is ideal for use with polar solvents, such as dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO), and for solvent combinations such as tetrahydrofuran with water.

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Size exclusion chromatography columns, ProSEC 300S

Supplier: VARIAN

The ProSEC 300S column is specifically designed as a single column solution for globular protein analysis. The pore size selection and optimisation provides an extended linear resolving range so that this single column can be used for analysis across the full range of globular proteins.

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