You searched for: Chromatography Columns

Supplier: VARIAN

Alumina, like silica, is an extremely polar sorbent. The alumina surface tends to be slightly more stable under high pH conditions than unfunctionalised silica. The small particle size of the Bond Elut™ Alumina range ensures high extraction efficiency even when small bed masses are used.

Supplier: Restek

Base-deactivated spherical silica that is optimised for UHPLC stability. Designed to resolve complex mixtures of polycyclic aromatic hydrocarbons (PAHs). Complete resolution of all 16 EPA 610 PAHs, plus two other routinely analyzed PAH compounds, in less than five minutes to greatly reduce run times and increase sample throughput.

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

Non bonded stationary phase packed columns.

Supplier: Restek

These columns are made up of passivated stainless steel.

Supplier: Restek

These fused silica columns have midpolarity Crossbond® phase manufactured for column to column reproducibility suited for validated methods.

Supplier: Restek

General purpose Rt®-TCEP columns is ideal for aromatics and oxygenates in gasoline.

Supplier: Restek

MXT®-65 columns are general-purpose columns for phenols, triglycerides, and fatty acids.

Supplier: Agilent

These columns are designed for the analysis of volatile fatty acids and phenols.

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.

Supplier: Restek

This Rtx®-Dioxin column has greater thermal stability than 5% diphenyl phases or high-cyano confirmation columns.

Supplier: Agilent

DB-5ht is a nonpolar column specially processed for an extended temperature limit of 400 °C.

Supplier: Agilent

AdvanceBio Glycan Mapping Columns for fast, reproducible, high resolution glycan characterisation.

Supplier: Restek

Bio-Safe columns are biocompatible and precision-machined from virgin PEEK.

Supplier: Restek

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

Supplier: Restek

Extend analytical column lifetime by preventing degradation from harsh 'steam-cleaning' water injections.

Supplier: Agilent

These columns have very low bleed characteristics that are ideal for GC/MS.

Supplier: Restek

Optimised for pesticide analysis by US EPA Method 608.

Supplier: VARIAN

Column type: HPLC column, Chromspher Si, Ø int.: 4,60 mm, Length: 250 mm, Pore size: 120 Å, Particle size: 5 µm

Supplier: Agilent

HP-PLOT U is an excellent column for C1 to C7 hydrocarbons, CO₂, methane, and several others.

Supplier: VARIAN

CP-PoraPLOT Amines is a unique column specially designed for the high retention analysis of very volatile amines.

Supplier: Restek

Rtx®-1614 columns (fused silica) are optimised for PBDE analysis by EPA Method 1614.

Supplier: Agilent

Recommended columns for alcohols, free organic acids, solvents, essential oils, flavors and fragrances.

Supplier: Agilent

These columns are ideal for the reproductible separation of proteins and peptides or other large molecules.

Supplier: Agilent

Agilent JW HP-VOC columns are precision-engineered to deliver excellent performance for analysis of volatile organic compounds.

Supplier: Restek

Allure® Organic Acids columns provide enhanced retention and selectivity for polar organic acids, allowing the separation to be performed on a single 30 cm column.