456 výsledků pro: "chromatography solvents"

Supplier: EDVOTEK

This experiment introduces chromatographic theory and methods of thin layer chromatography (TLC). A mixture of dyes are separated on a cellulose-based TLC plate using different solvent systems.

Supplier: Honeywell Chemicals

Honeywell Chromasolv™ GC-headspace solvents:

Supplier: Honeywell Chemicals

n-Heptan for gas chromatography, Burdick & Jackson™

Supplier: Agilent

InfinityLab stickers, for solvent bottles. Easily removable

Supplier: MP Biomedicals

MP EcoChrom™ Alumina B, Activity Super I available as basic alumina is commonly used for purification processes of all kinds, including sample preparation for pesticides, and environmental analysis, solvent purification and all kinds of chromatography, requiring the highest precision and reproducibility.

Supplier: Cytiva

Can be used in aqueous solutions and nearly all organic solvents commonly used in liquid chromatography of macromolecules with the following few exceptions - chlorinated hydrocarbons, acetone and other ketones, aliphatic esters and phenol

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Supplier: Merck

SupraSolv® ECD and FID is specially developed for gas chromatography in combination with ECD (Electron Capture Detetor) and FID (Flame Ionisation detector). SupraSolv® solvents offer the largest specified retention time range, a clear baseline and a minimal signal-to-noise ratio leading to reliable and reproducible analysis results.

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Supplier: Honeywell Chemicals

Honeywell Chromasolv™ GC-headspace solvents:

Supplier: Thermo Fisher Scientific

TRACE™ TR-5MS GC columns are ideal for hydrocarbons, solvents, pesticides, herbicides, phenols, amines.

Supplier: TOSOH Bioscience

Toyopearl resins can be used in organic solvents or mixtures of organic solvents and water. The compatibility of DMF with Toyopearl also permits the separation of hydrophobic substances such as polystyrenes.

Supplier: SCIENCIX

Replacement parts for OEMs such as Agilent, Shimadzu and Waters chromotograpy systems. Sciencix parts are equivalent to the corresponding OEM part.

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Supplier: Resonac

These are styrene divinylbenzene copolymer-based organic solvent SEC (GPC) columns. Suitable for a wide range of applications from low to high molecular weight compounds.

Supplier: VARIAN

Polaris™ silica is ideal for the rapid separation of low molecular weight compounds that are soluble in organic solvents.

Supplier: VARIAN

Polystyrene standards for many organic solvents either for conventional GPC column calibration or for calibrating light scattering and viscosity detectors that provide equidistant calibration points for greater accuracy.

Supplier: VARIAN

The EasiCal system for organic solvents consists of two different combs, each with ten detachable spatulas supporting a mixture of five polymer standards with MWs selected to provide equidistant calibration points for greater accuracy.

Supplier: Merck

Ozone scrubber

Supplier: Agilent

High resolution over a specific MW range. Typical applications: Triglycerides, linear hydrocarbons, acrylates, rubbers. Compatible with organic solvents.

Supplier: Agilent

DB-1701P is bonded, cross-linked and solvent rinsable, delivering excellent performance in the analysis of organochlorine pesticides.

Supplier: Honeywell Chemicals

Honeywell Chromasolv™ GC-headspace solvents:

Supplier: MACHEREY-NAGEL

The retention gap technique in combination with on-column injection allows concentration of a large sample volume in the capillary column. The retention gap depends on the solvent used:

Supplier: Resonac

Standard organic solvent SEC (GPC) column.

Supplier: VARIAN

Bond Elut™ LMS polymeric sorbent lets you elute without having to add amine modifiers, buffers, or acids. The elimination of secondary interactions means that elution of analytes can be achieved with pure organic solvents or HPLC mobile phase-compatible solvent mixtures of low ionic strength. These characteristics are crucial to allow compatibility with LC/MS or other delicate analytical techniques.

Supplier: VARIAN

The ICP-OES tubing kit for low volatile organic solvents includes:

Supplier: Thermo Fisher Scientific

HyperSep™ positive pressure manifold can hold 48 SPE cartridges of various sizes 1, 3, 6, and 10/15 ml. Samples and solvent added to the SPE cartridges are extracted under positive pressure for an even flow at each position. Robust way to prepare multiple samples for subsequent analysis by chromatography.

Supplier: VARIAN

Hexafluoroisopropanol (HFIP) is used as a solvent in GPC for the analysis of important industrial polymers such as polyesters, polyamides and polylactide/glycolide copolymers. For greatly improved performance in extremely polar solvents such as HFIP and trifluoroethanol, we have developed novel 'multipore' technology to produce PL HFIPgel, a PS/DVB packing featuring a monodisperse particle size, high pore volume and high resolution.

Supplier: Thermo Fisher Scientific

Pierce™ CDI-activated agarose is carbonyldiimidazole affinity chromatography resin, activated for covalent immobilisation of N-nucleophiles and primary amine ligands in aqueous or organic solvent conditions.