239 Results for: "chromatography solvents"

Supplier: Cytiva

End piece, complete, POM

Supplier: CHIRAL TECHNOLOGIES

These columns allow chromatographers to employ essentially any organic solvent as mobile phase to develop methods for the most challenging separations. These columns are available in a variety of particle sizes and offer great speed and column resolving power. Columns packed with 3 µm CSPs offer high speed separations and a reduction in analysis time and cost per sample. Columns, packed with 3 µm particles, may be used in conventional HPLC units without significant loss in performance, even with the smaller column dimensions.

Supplier: HAMILTON BONADUZ

The PRP-X100 is a polymeric column packing for separation of inorganic and organic anions from 10 to 500 ppm. These columns can be used to separate ions at concentrations from 1 to 1000 ppm without suppression or elaborate preconcentration techniques. The highly inert polymeric support resists chemical attack from organic solvents and aqueous buffers (0 - 100% aqueous or organic; pH 1 to 13), effectively lengthening column life.

Supplier: Restek

Tubing assembly eliminates the need for the adapter fitting on the static and purge valves.

Supplier: Restek

These assemblies meet original equipment manufacturer's performance.

Supplier: VARIAN

Hi-Plex HPLC columns deliver improved efficiency, lower operating pressures and longer column lifetimes from monodispersed materials. With a range of ligand counter ions for optimum selectivity and resolution and materials matched to the USP definitions of media types L17, L19, L34 and L58, the Hi-Plex range is ideal for isocratic separations using water or dilute acid as the eluent. This simplifies your HPLC system requirements and eliminates the use of potentially hazardous organic solvents.

Supplier: Thermo Fisher Scientific

The QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) technique is increasingly becoming the technique of choice for the extraction of pesticide residues in fruit, vegetables and other foods. The QuEChERS method offers the advantage of high recoveries, accurate results and high sample throughput, combined with the associated cost savings with low solvent and labour requirements. Yet the procedure is robust and rugged.

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: Resonac

SB-800 HQ are polyhydroxymethacrylate-based SEC columns for molecular weight distribution analysis of water-soluble polymers. The solvent can be substituted with DMF (except for SB-802 HQ and SB-807 HQ columns), enabling the analysis of polar polymers.

Supplier: PerkinElmer

General purpose columns with a highly versatile phase that is extremely rugged, exhibiting long column lifetime and high operating temperatures. Ideal for the analysis of non polar petrochemical samples, such as detailed hydrocarbon analysis, hydrocarbon gases, petroleum oxygenates, petroleum aromatics, fuels waxes, oils, sulphur compounds, mercaptains and carbon disulphide. It also an excellent phase for solvents, chemicals, flavours, fragrances, essential oils, air toxins, chlorofluorocarbons, pesticides and hydrocarbons.

Supplier: Agilent

These ICP-OES series are compatible with a range of accessories and supplies designed to extend the capabilities of the instruments.

Supplier: Agilent

Poroshell 120 is made with a superficially porous particle that has a solid silica core and a porous outer layer. This particle provides high efficiency at lower pressures and is ideal for fast or high-resolution separations of many types of analytes.

Supplier: Restek

These preventive maintenance (PM) kits are suitable for Waters HPLC and ACQUITY UPLC Systems.

Supplier: HAMILTON BONADUZ

A fast, versatile HPLC column packing material. These columns rapidly and easily separate closely related alcohols and organic acids without column heating. The sulfonated poly(styrene-divinylbenzene) support separates samples by a mixed mode mechanism. A wide range of samples can be analysed with these columns because the selectivity of the column can be altered by changing the pH of the buffer or adding an organic modifier (methanol, acetonitrile) to the buffer. The stability to organic solvents makes it possible to analyse samples that have been too highly retained on conventional ion exclusion supports.

Supplier: Agilent

These spray chambers and supplies are fully compatible with your PerkinElmer ICP-OES.

Supplier: Agilent

Poroshell 120 is made with a superficially porous particle that has a solid silica core and a porous outer layer. This particle provides high efficiency at lower pressures and is ideal for fast or high-resolution separations of many types of analytes.

Supplier: MACHEREY-NAGEL

CHROMABOND® PTS and CHROMABOND® PTL columns are designed for the separation of a two-phase mixture without a separation funnel.

Supplier: Agilent

CrossLab snap top vials and caps provides a secure seal without crimping.

Supplier: VARIAN

The PL-SAX media are well suited for anion exchange HPLC separations of proteins, peptides, and deprotected synthetic oligonucleotides. Denaturing conditions of temperature, organic solvent, and high pH levels are used for the oligonucleotide separations.

Supplier: MACHEREY-NAGEL

The highly polymeric binder used for these sheets is stable in almost all organic solvents and resistant towards aggressive visualisation reagents. It is also completely stable in purely aqueous eluents.

Supplier: Agilent

The 4100/4200 Microwave plasma-atomic emission spectrometer runs entirely on air, which means your lab can eliminate flammable and expensive gases. It's safer and more cost efficient than other spectrometers. The 4100/4200 MP-AES enables superior detection and can perform unattended multi-element analyses.

Supplier: COLLECTION PREFIX HPLC

On-Line degassing has been shown to be more effective at removing dissolved gas from mobile phases than sonication or helium sparging. Up to five solvent lines can be degassed simultaneously by one unit. The extremely low volume of each PTFE AF channel (480 μl) offers very quick equilibration and very short start-up times.

Supplier: COLLECTION PREFIX HPLC

ChromSwordAuto® 5: Communicates directly with the HPLC instrument in order to create a fully automated HPLC or UHPLC method development station. The unique ChromSwordAuto® software is capable of developing and optimising HPLC methods fully automatically within just a few hours. Methods already in use can also be optimised, thus reducing analysis time considerably. All you have to do is place the sample in the autosampler, set a few parameters and start the optimisation process. ChromSwordAuto® then predicts the method conditions and controls the HPLC system connected in recording the chromatograms. These are analysed by the software and the optimal conditions determined. The rapid optimisation mode can be used to provide an overview of the performance of the column/solvent system selected or to rapidly screen columns and eluents considered for use. The fine optimisation mode additionally collects and evaluates further ancillary data and produces up to 10 sets of alternative optimal HPLC conditions. Both of these operating modes can be applied in combination with column and solving switching procedures in order to try a variety of column/solvent combinations or to establish optimal pH conditions – fully automatically.
Main features include:

Supplier: CAMAG

HPTLC basic kit includes:
Nanomat 4, without capillary pipettes and holder
Capillary dispenser complete with universal capillary holder, one dispenser magazine for 1 µl capillaries and one box of 5×100 capillary pipettes of 1,0 µl
Dispenser magazine for 0,5 µl capillaries
Disposable capillary pipettes 0,5 µl, on belts, 5×100 pack
Two twin trough chambers for 100×100 or 200×100 mm plates, with stainless steel lid
Horizontal developing chamber for 100×100 or 200×100 mm plates
smartALERT, solvent front monitor
Saturation pads, pack of 100
TLC/HPTLC sprayer
Precoated plates, Merck HPTLC silica gel 60 F254, 100×100 or 200×100 mm, pack of 25
Test dye mixture III, 100 ml
UV cabinet 3 consisting of UV lamp dual wavelength, 254/366 nm, 8 W each

Supplier: EDVOTEK

Plant pigment chromatography and photosynthesis Kit includes: instructions, chloroplast extraction dilution buffers, reducing reagent, DCIP, standard pigments, chromatography solvent, Sarkosyl, thin layer cellulose chromatography plate, microliter c 1 * 1 KIT

Supplier: Spectrum Laboratories

Biotech RC (Regenerated Cellulose) dialysis tubing is crafted from a regeneration process that yields superior temperature tolerances and chemical compatibilities with the same high purity and selectivity as Biotech CE. RC membrane can tolerate concentrated-weak acids & bases, dilute-strong acids and bases, most alcohols and some mild or dilute organic solvents. Exposure to strong polar or organic solvents may damage RC membranes. Use with pH 2 - 12 and temperature 4 - 60 °C.

Supplier: CAMAG

These flat bottom chamber allow the chromatogram to be developed in a tank atmosphere of partial or complete saturation with solvent vapours. The degree of layer pre-saturation cannot be controlled unless additional accessories are used.

Supplier: Spectrum Laboratories

KrosFlo® hollow fibre membranes for implant technology provide a true-to-life response for drug screening and cancer research. Perfectly suited for implantation, the modified Polyvinylidene Difluoride (mPVDF) hollow fibre membrane is biocompatible, resistant to cell adhesion, hydrophobic and resistant to a wide variety of organic solvents, including most aqueous acids and bases. Furthermore, these hollow fibres can be heat sealed and autoclaved without affecting the molecular weight cut off (500 kDa MWCO) or changing the membrane performance.

Supplier: BUCHI

Flash chromatography system

Supplier: BUCHI

Flash chromatography system