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2915 risultati per "VARIAN"

"VARIAN"

2915 Risultati
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Gel permeation chromatography columns, EnviroPrep

Supplier: VARIAN

These columns permit a simple, one stage clean-up as part of a methodology to determine pesticides in many organic matrices. The higher molecular weight fractions such as lipids, polymers, natural resins and dispersed high molecular weight components are easily eliminated in the GPC analysis.

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Resin, PL-CMS, StratoSpheres™

Supplier: VARIAN

Chloromethylpolystyrene known as merrifield resin, PL-CMS is a copolymer support for solid phase synthesis of peptides using Boc chemistry.

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Polystyrene standards, GPC/SEC columns calibration

Supplier: VARIAN

Polystyrene standards for many organic solvents either for conventional GPC column calibration or for calibrating light scattering and viscosity detectors that provide equidistant calibration points for greater accuracy.

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Resin, PL-Wang, StratoSpheres™

Supplier: VARIAN

PL-Wang is a 4-alkoxybenzylalcohol functionalised polystyrene, prepared from copolymerised PL-CMS, for solid phase peptide synthesis using Fmoc protection strategies and is cleaved using ~ 95% TFA. Particularly useful for solid phase synthesis of small molecules which have a carboxylic acid functional group.

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Resin, PL-AMS, StratoSpheres™

Supplier: VARIAN

Aminomethylstyrene resin is a particularly versatile material suitable for the attachment of a variety of spacers, handles and linkers (for use in solid phase synthesis).

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Polymethylmethacrylate standards, GPC/SEC columns calibration

Supplier: VARIAN

Polymethylmethacrylate (PMMA) standards are extremely versatile as they can be used for organic GPC with a wide range of medium polarity eluents, such as tetrahydrofuran, toluene, methyl ethyl ketone and ethyl acetate.

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Resin, PL-Rink, StratoSpheres™

Supplier: VARIAN

PL-Rink resin, 1% DVB, 0,3 mmol/g, 75 - 150 μm, 100 g

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Polyethylene glycol/oxide standards

Supplier: VARIAN

These hydrophilic polymers are suitable for both aqueous SEC and organic GPC using the majority of polar organic solvents. The two types are chemically similar that can be used together across a wider molecular weight range with aqueous and organic polymers.

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Pressure relief valves

Supplier: VARIAN

Valves made from stainless steel are two-position with six-port. It is manually operated with three-way switching.

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Size exclusion chromatography columns, PL aquagel-OH™ preparative

Supplier: VARIAN

These PL aquagel-OH preparative columns are used in fractionation of wide variety of water-soluble samples based on their size in solution.

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Columns, MicroBore

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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Spare parts kits for load and lock preparative HPLC column packing system

Supplier: VARIAN

Load and Lock 4002 column, spare parts kit

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Gel permeation chromatography columns, PLgel MIXED-LS

Supplier: VARIAN

The PLgel MIXED-LS series is a PS/DVB packing using an innovative proprietary suspension polymerization technique to virtually eliminate nano-particle leakage.

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Gel permeation chromatography columns, PLgel Olexis™

Supplier: VARIAN

PLgel Olexis is optimized for the analysis of high molecular weight polymers at elevated temperatures, particularly polyolefins and high performance polymers.

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Resin, PL Cl-Trt-Cl, StratoSpheres™

Supplier: VARIAN

PL Cl-Trt-Cl supports peptide synthesis using the Fmoc approach. This resin can be used for the synthesis of a wide range of organic acids, and has also been used for the synthesis of amines, phenols and other alcohols.

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SPE cartridges, Bond Elut™ Plexa PAX

Supplier: VARIAN

Bond Elut™ plexa PAX non-polar/anion-exchange polymeric SPE offers excellent clean-up and reproducibility, and is suitable for polar and non-polar acidic analytes.

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