You searched for: Chromatography Columns

Supplier: VARIAN

Bond Elut™ CH is a mid-polarity sorbent that exhibits unique selectivities for certain analytes. When employed as a non-polar sorbent, CH has the approximate polarity of a C₂ sorbent. Bond Elut™ CH is often a good choice when non-polar sorbents such as C₁₈, C₈ or C₂ do not provide the desired selectivity.

Supplier: VARIAN

Bond Elut™ PH is a non-polar bonded silica material which exhibits a different selectivity to alkyl or aliphatic functionalised phases such as C8 or cyclohexyl. The electron density present in the aromatic ring affords an enhancement in the retention of conjugated or aromatic ring-containing analytes due to desirable pi-pi interactions.

Supplier: VARIAN

The Bond Elut™ Certify extraction cartridge utilises a packed bed consisting of a special, non-polar C8 sorbent and a strong cation exchanger (SCX). Certify is most commonly used to extract basic (cationic) drugs from urine and blood, but it is also very effective for extraction of a wide range of compounds from a diverse range of aqueous matrices.

Supplier: VARIAN

Bond Elut™ Diol (2OH) resembles unbonded silica in its tendency for strong hydrogen bonding with analytes. 2OH can also be employed in the non-polar mode because the hydrocarbon spacer on its functional group provides enough non-polar character for retention of hydrophobic analytes. Bond Elut™ Diol is a listed SPE device for the DIN 14333-1 method on benzimidazole fungicides.

Supplier: Agilent

Step 1: Extraction
Choose the extraction salt packet based on your method of analysis, AOAC or EN. The buffered extraction salts are amenable for more liable pesticides. Adding solvent and then salts to a comminuted fruit or vegetable sample (10 g or 15 g) enables you to extract the pesticides of interest into the organic layer. However, adding a food sample with a high percentage of water directly to the salts may create an exothermic reaction that can affect your analyte recoveries.

Supplier: Restek

The Rt®-DEXsa columns are useful for flavor compounds in fruit juices.

Supplier: Agilent

These columns contain (14%-Cyanopropyl-phenyl)-methylpolysiloxane.

Supplier: Restek

Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses.

Supplier: Restek

Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses.

Supplier: Restek

MXT®-50 columns are general purpose columns for pesticides, herbicides, rosin acids, phthalate esters and sterols.

Supplier: VARIAN

PLOT columns are ideal for separating compounds that are gases at room temperatures.

Supplier: Restek

General purpose columns for FAMEs, solvents, BTEX aromatics, flavour compounds, alcohols.

Supplier: Agilent

Column type: HPLC column, Superspher®, RP select B, Ø int.: 4,00 mm, Length: 125 mm, Pore size: 60 Å, Particle size: 4 µm

Supplier: VARIAN

Pursuit XRs are ultra-purity silica based columns designed to increase productivity.

Supplier: Agilent

300 stablebond columns are designed for optimal use at low pH.

Supplier: Restek

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

Supplier: Restek

These application-specific columns with proprietary crossbond phases are suitable for organophosphorus pesticides and best column combination for US EPA Method 8141.

Supplier: Agilent

Packed GC columns are designed and manufactured to offer excellent and reproducible performance for all sample types associated with packed column separations, most important in the hydrocarbon processing industry.

Supplier: Agilent

GS-Alumina is the most polar alumina phase and is an excellent general use column for light hydrocarbon analysis.

Supplier: Restek

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

Supplier: VARIAN

Column type: HPLC column, PLRP-S, Seperation of macromolecular plasmids by anion exchange, Ø int.: 7,50 mm, Length: 50 mm, Pore size: 4000 Å, Particle size: 8 µm

Supplier: VARIAN

MetaSil® Basic columns tends to retain polar compounds better than standard phases, often showing improved retention for compounds that elute in the void volume on standard alkyl phases. These columns are recommended for use at pH 2 to 7,5.

Supplier: Restek

Ultra silica columns made of high-purity, type-B silica are designed for selective and reliable HPLC applications.

Supplier: Restek

Polar phase, Crossbond® cyanopropylmethyl phenylmethyl polysiloxane general-purpose columns for FAMEs, carbohydrates, sterols, flavour compounds.

Supplier: Restek

Application specific columns for free (underivatized) acids and some inorganic acids. Resistant to oxidative damage.

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.

Supplier: Agilent

VF-17ms is a 50% phenyl/50% dimethylpolysiloxane, medium-polarity, low bleed column ideal for environmental and clinical research methods.

Supplier: Agilent

These Prep LC columns are designed for high loadability to purify milligram to gram quantities of products.

Supplier: HICHROM

Designed for operated in positive ionization mode for analysis of standards.

Supplier: VARIAN

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