NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

Kieselguhr phase for liquid-liquid extraction Features Base material coarse-grained kieselguhr (also known as diatomaceous earth, hydromatrix, celite) large pore size, high pore volume, constantly high batch-to-batch quality pH working range 1–13 Application: …

Features More than 50 different sationary phases available e.g., silica gel based: unmodified, C8, C18, NH2, CN; Polyermic material: HR-X, HLB, PA; mixed-mode, special combinations, aluminum oxide, kieselguhr (XTR) etc. NP, RP, ion exchanger and for special applications Different…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

LIPODEX® cyclodextrin phases Capillary columns for GC enantiomer separation Features Base material: cyclic oligosaccharides consisting of six (α-cyclodextrin), seven (β-cyclodextrin) or eight (γ-cyclodextrin) glucose units bonded through α-1,4-linkages …

Polymer-based HPLC phases for separation of sugars Separation mechanism includes steric exclusion, ligand exchange and partition effects, ligand exchange being the predominant force, since the hydrated metal ions form strong interactions with the hydroxyl groups of the sample molecules. …

VarioPrep (VP) columns for preparative HPLC Features Column system for preparative HPLC manufactured from stainless steel with two adjustable end fittings, e.g., for frequent use of backflushing techniques Allows compensation of a dead volume, which could result at the column inlet…

NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

NUCLEOGEL® SAX Polymer-based HPLC phases for anion exchange chromatography of biological macromolecules Features Polymer-based strongly basic anion exchanger -N+(CH3)3, gel matrix quaternized PEI · USP L23 Particle size 8 µm Pore size 1000 Å pH working range…

NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

PS/DVB copolymer with secondary and tertiary ammonium modification for mixed-mode SPE with weak anion exchange and reversed-phase properties (WAX). Exchange capacity ≥ 0.8 meq/g, pKa 6 + 9. High-purity material with ideal flow properties and highest reproducibility. Allows highest…

NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

Special products for determination of pesticides in food samples QuEChERS method and pre-mixes Within a few years after its development by Anastassiades et al. the QuEChERS method has gained a leading position for the determination of pesticide residues in food samples by GC-MS or LC-MS,…

VarioPrep (VP) columns for preparative HPLC Features Column system for preparative HPLC manufactured from stainless steel with two adjustable end fittings, e.g., for frequent use of backflushing techniques Allows compensation of a dead volume, which could result at the column inlet…

Untreated capillaries Recommended application: Capillary electrophoresis Preparation of capillary columns Capillary LC applications

Glass columns and kits for low pressure flash chromatography Economic low-tech method for the synthesis laboratory Suited for the separation of compounds up to gram levels No expensive equipment required MN flash chromatography kits include a glass column, eluent reservoir, silica…

Reservoir columns for application of medium-size samples.

OPTIMA® 17 MS Capillary columns for GC Features Silarylene phase with selectivity analogue to 50 % phenyl – 50 % methylpolysiloxane USP G3 Medium polar phase with very low bleeding Ideal for ion trap detectors, optimum reference column in combination with a 1 MS or 5…

Polymer-based SPE phases for RP and ion chromatography Features Base material: high purity polystyrene-divinylbenzene copolymers (PS/DVB), pore size 100 Å, particle size 100 µm very low degree of swelling, thus very well suited for chromatography reliable function…

Phenyl-modified silica phase for SPE Features Base material silica, pore size 60 Å, particle size 45 µm, specific surface 500 m2/g, pH stability 2–8 Phenyl phase, carbon content 8 %, polarity similar to C8 In addition to hydrophobic interactions more selective…

Ammonium – sulfonic acid modified silica phase for SPE Features Base material silica, pore size 60 Å, particle size 45 µm, specific surface 500 m2/g zwitterionic polar phase with ammonium – sulfonic acid modification, carbon content 7 %, pH stability 2-8 Polar…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

OPTIMA® 5 MS Capillary columns for GC Features 5 % diphenyl – 95 % dimethylpolysiloxane USP G27 / G36 Nonpolar phase with low bleeding Suited for GC/MS and ECD application and general analyses at trace level Perfect inertness for basic compounds Similar…

RESOLVOSIL BSA-7 Silica-based protein phase for HPLC enantiomer separation Features Base material NUCLEOSIL® silica, particle size 7 µm, pore size 300 Å Chiral selector bovine serum albumin (BSA) · USP L75 Separation based on selective interaction of…

OPTIMA® WAX Capillary columns for GC Features Polyethylene glycol 20 000 Da USP G16 Polar phase Recommended for solvent analysis and alcohols, suitable for aqueous solutions Similar phases: DB-Wax, Supelcowax, HP-Wax, HP-INNOWAX, Rtx-Wax, CP-Wax 52 CB, Stabilwax,…

Recommended application: Preparation of capillary columns As precolumns, whenever a larger contamination capacity is required Different deactivations are available: Methyl-Sil deactivated Phenyl-Sil deactivated CW deactivated