Hledali jste: Kolony chromatografické

Supplier: VARIAN

The PLRP-S media, rigid poly(styrene/divinylbenzene) particles, are available in a range of pore sizes for small molecule, synthetic biomolecule and macromolecule purification. Their thermal and chemical stability makes them ideal for purifications that require extreme conditions for sample preparation, compound elution and column regeneration

Supplier: Agilent

These columns contain (50%-Phenyl)-methylpolysiloxane. They are excellent for confirmation analysis.

Supplier: VARIAN

VF-Xms delivers the ultimate in sensitivity and signal-to-noise ratio, and is the low bleed, more polar alternative.

Supplier: Merck

Ascentis® Express high-speed, high-performance liquid chromatography columns are based on the wider-pore 160 Å Fused-Core® particle design to provide adequate spacing for the long-chain C30 ligands.

Supplier: Merck

Ascentis® Express 160 Å Phenyl-Hexyl high-speed, high-performance liquid chromatography columns are based on a 160 Å Fused-Core® particle design.

Supplier: VARIAN

CP-Sil 5/C₁₈ CB for PCB has a lower polarity than 100% polydimethylsiloxane due to its C₁₈ substitutions. Due to the absence of cyano groups it provides high signal-to-noise ratios for ECD detectors.

Supplier: Agilent

These columns are with middle range polarity. It is ideal for hydrocarbon analysis, and for resolving acetylene from butane and propylene from isobutane.

Supplier: Merck

Porous Graphitic Carbon (PGC) particle packed column for separating poorly retained, polar compounds.

Supplier: Agilent

For applications requiring resolution of argon and oxygen without cryogenic cooling, select columns with thick film. The thin film configurations are ideal for many applications, including routine air monitoring and analysis. The thin film column resolves argon and oxygen at subambient temperatures.

Supplier: Agilent

These columns are designed for separation of cis-trans fatty acid methyl esters (FAMES).

Supplier: VARIAN

OmniSpher™ is an ultra-high bonded silica designed for the analysis of mixtures containing either acidic or basic functionality that would normally tail on more traditional columns.

Supplier: VARIAN

CP-TCEP column is able to separate benzene after n-dodecane. In addition, the excellent separation power provides the necessary resolution for complex mixtures such as gasoline.

Supplier: Merck

Ascentis® C18 HPLC columns are optimised to the three terms of the resolution equation: efficiency, retention, and selectivity. The classical C18 column is suitable for any method that specifies a C18-type column.

Supplier: VARIAN

The UltiMetal CP-Sil PAH CB column combines the advantages of a highly thermo-stable stationary phase with UltiMetal as the column material.

Supplier: VARIAN

Agilent JW CP-1301 is a medium polarity column ideal for the analysis of herbicides, pesticides, and many pharmaceutical products.

Supplier: Agilent

DB-WAXetr is a high polarity polyethylene glycol (PEG) column for the analysis of alcohols, solvents, benzenes, styrenes, and organic acids, among others.

Supplier: Agilent

Porous divinylbenzene homopolymer columns with polarity between Porapak-Q and Porapak-N for the separation of ethane, ethylene and ethyne (acetylene).

Supplier: Agilent

Typ kolony: GC column, Ø vnitř.: 2,00 mm, Délka: 2 m, Ø vněj.: 3,18 mm

Supplier: Agilent

Biodiesel capillary GC columns are designed and application optimised for the analysis of biodiesel to meet ASTM and CEN testing standards. These columns are used for the measurement of residual methanol in B100.

Supplier: Merck

BIOshell™ 400 Å Protein C4 columns contain 3,4 µm advanced Fused-Core® particles with 400 Å pores that are specifically engineered to provide efficient separation of large proteins.

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

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: VARIAN

CP-Sil 5 CB for Formaldehyde is optimized for the analysis of formaldehyde, water and methanol, and can deliver trace analysis of sulfur compounds and partial permanent gases.

Supplier: Agilent

High quality SampliQ SPE (Solid Phase Extraction) products help the user confidently extract and concentrate samples from complex matrices, ensuring fast, accurate, and reproducible results from the very first step. The SampliQ line includes polymers, silica and non-silica options to meet user's specific SPE needs.

Supplier: VARIAN

CP-TAP CB is available in special fused silica for maximum column strength at temperatures up to 370 °C, or UltiMetal capillary for the ultimate robustness.

Supplier: Merck

Discovery® C18 columns are designed for the separation of peptides and small proteins with exceptional peak shape for basic and acidic analytes.

Supplier: Agilent

DB-VRX has unique selectivity engineered for optimum resolution of volatiles analysis.

Supplier: Agilent

Step 2: Dispersive SPE cleanup
Select the dispersive SPE kit suited to the type of food being analysed and the method you are following. In this step, an aliquot of the sample extract from step one (see QuEChERS extraction kits) is added to a 2 or 15 ml centrifuge tube containing a small amount of SPE sorbent and MgSO₄. The sorbent will pull out interfering matrix materials from the sample, while the MgSO₄ helps remove excess water and improve analyte partitioning.

Supplier: Agilent

For normal phase chromatography, the ZORBAX® product line offers a choice of bonded and non-bonded silica packings.

Supplier: Agilent

The ZORBAX® Bonus-RP column has a polar amide group embedded in a long alkyl chain. This novel bonding reduces interactions between basic compounds and the silica support, improving peak shape for the most difficult basic compounds. Peak shape and column lifetime are further improved by triple endcapping. In addition, diisopropyl side groups provide steric protection against acid hydrolysis for good lifetime and low pH. The Bonus-RP column provides an alternate selectivity to C18 and C8 alkyl bonded phases.