You searched for: Chromatography Sorbents

Supplier: VARIAN

Bondesil™ CBA bulk sorbent, 40 µm

Supplier: Restek

Packing material, Tenax®-TA, mesh size of 60/80

Supplier: VARIAN

PL-Guanidine MP SPE, flangeless, 500 mg/6 ml

Supplier: VARIAN

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

Supplier: VARIAN

Strongly basic anion exchanger, Cl⁻ form. Moist, light yellow spherules.

Supplier: VARIAN

SepTech™ C18 bulk media, designed for high performance separations at high capacity. The two pore sizes, 60 Å and 150 Å, have been optimised to give high capacity for small molecules and larger natural molecules and peptides, respectively.

Supplier: VARIAN

The PLRP-S reversed phase HPLC media delivers the pure oligonucleotides (oligos) required for genomics applications, including quantitative PCR, microarrays, and gene synthesis assays.

Supplier: Restek

Diatomaceous earth is used as a filter aid to improve extraction efficiency of densely packed soils, such as clays. By mixing the sample with diatomaceous earth, recoveries can be improved and excess moisture can be absorbed.

Supplier: Restek

Packing material, Porapak S, mesh size of 80/100, temperature limits of 250 °C

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).

Supplier: Restek

Florisil® PR is commonly used to remove polar interferences from pesticide residues. This bulk material is ideal for labs packing their own extraction cartridges for pesticide residue extractions.

Supplier: Restek

These bonded silica packings with n-octane or cyanopropyl (OPN) functional groups yield faster separations of C1 to C4 hydrocarbons, higher thermal stability, shorter conditioning times, and longer lifetimes.

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.

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.

Supplier: Restek

Acylation reagents offer the same advantage available from silylation reagents: creating less polar, more volatile derivatives. In comparison to silylating reagents, the acylating reagents can more readily target highly polar multifunctional compounds, such as carbohydrates and amino acids. In addition, acylating reagents offer the distinct advantage of introducing electron-capturing groups, thus enhancing detectability during analysis.

Supplier: Restek

Anhydrous sodium sulphate is the most common drying agent used to remove moisture from sample extracts. Activate by heating to 400 °C for four hours before use.

Supplier: Restek

Silylation is the most widely used derivatisation procedure for sample analysis by GC. In silylation, an active hydrogen is replaced by an alkylsilyl group such as trimethylsilyl (TMS) or tert-butyldimethylsilyl (tert-BDMS). Silyl derivatives are more volatile, less polar, and more thermally stable. As a result, GC separation is improved and detection is enhanced.

Supplier: Restek

Packing material, HayeSep® A, mesh size 60/80, temperature limit up to 165 °C

Supplier: Thermo Fisher Scientific

Tenax® TA, Packed: Bottle

Supplier: Thermo Fisher Scientific

Trimethylsilyl N-trimethylsilylacetamidate, pyridine for GC, BSA:Pyridine, 25 ml