168 Results for: "vwr chemical buffers"

Supplier: VWR Chemicals

peqGOLD pre-stained protein marker IV is a mixture of 10 recombinant, highly purified coloured proteins supplied 'ready to use' in loading buffer. The protein concentrations are optimised to yield well-defined bands directly visible in SDS-polyacrylamide gels.

Supplier: VWR Chemicals

MES (β-(N-Morpholino)ethanesulphonic acid), anhydrous ≥99%, high purity suitable for buffer solutions

Supplier: VWR Chemicals

A zwitterionic buffer used as a running buffer for denaturing agarose gel electrophoresis of RNA.

Supplier: VWR Chemicals

Ready to use culture media for microbiological test requirements in the food industry, water, environmental control and in the pharmaceutical industry. The range is manufactured from high quality raw materials. All the culture media are manufactured using selected dehydrated bases, and comply with various standards. All media are produced using the latest technology and are subject to strict quality controls carried out by qualified microbiologists.

Supplier: VWR Chemicals

A convenient pre-mixed solution that is easily diluted for buffer preparation under denaturing conditions.Commonly used to denature nucleic acids for electrophoresis and to study the secondary and tertiary structure of proteins. Effective for maintaining DNA in a highly denatured state during sequencing protocols, urea is also useful for accelerating the activity of Proteinase K digestions.

Supplier: VWR Chemicals

VWR® dehydrated culture media that has been granulated offers both convenience and safety benefits. The correct dissolution of culture media is critical to achieving the best performance. Granulated culture media saves time in the preparation of ready to use culture media. In addition, granulation reduces dust generation, so handling the product is more pleasant and safer for the user, making it a much cleaner and safer working environment.

Supplier: VWR Chemicals

peqGOLD Protein Marker I is a mixture of seven purified proteins which are re-dissolved 'ready to use' in loading buffer. The proteins resolve into sharp, tight bands in the range of 14,4 to 116,0 kDa when analysed by SDS-PAGE and stained with Coomassie Brilliant Blue R-250.

Supplier: VWR Chemicals

Disodium hydrogen phosphate solution 1/15 mol/l (1/15 M), AVS TITRINORM buffer stock solution

Supplier: VWR Chemicals

Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) ≥99.9% buffer substance, for analysis and biochemical purposes

Supplier: VWR Chemicals

Indicator tablets for determination of water hardness by titration with EDTA.

Specifications
Minimum weight: ≥ 0.20 g
Maximum weight: ≤ 0.23 g
Disintegration time (at 25°C): ≤ 150 s
Application test: conforms

The tablets are dissolved in 100 ml of the water sample to be tested, which has been buffered at pH 10 with 1 ml of Ammonia/ Ammonium chloride buffer solution, and then titrated with EDTA solution (0,01 M) till the sample turns from red to blue.
Total hardness in mg/l = 10×ml of titrant used.

Control samples of  calcium carbonate should be used to calibrate the method.

Supplier: VWR Chemicals

Reagent for stabilisation of buffer formulations and electrophoresis of biological molecules.

Supplier: VWR Chemicals

Hepes is a widely used buffer in biological studies. In cell culture media, it is employed as a substitute for the bicarbonate buffer at a concentration of 25 mM or as a supplement to the bicarbonate buffer (concentration 10 to 15 mM).

Supplier: VWR Chemicals

Reagent for stabilisation of buffer formulations and electrophoresis of biological molecules.

Supplier: VWR Chemicals

Reagent for stabilisation of buffer formulations and electrophoresis of biological molecules.

Supplier: VWR Chemicals

Biological buffers are useful for cell culture in vitro, enzyme assays and some electrophoretic applications at physiological pH. Universally applicable buffers for biochemistry must be water soluble, not interfere with biological processes.

Supplier: VWR Chemicals

A range of culture media in compliance with ISO standards and the International Harmonised Pharmacopoeia. All our media are, as you would expect, produced using high quality raw materials and are subject to strict quality controls, in a production environment following Good Manufacturing Practice guidelines. Raw materials are selected in compliance with the required standards. Dehydrated culture media should be stored at 10 to 30 °C unless otherwise stated, in their closed containers in a dry environment. Standard pack size is 500 g.

Supplier: VWR Chemicals

An excellent reagent for maintaining SH groups in reduced state; quantitatively reduces disulfides. DTT is effective in sample buffers for reducing protein disulfide bonds prior to SDS-PAGE.

Supplier: VWR Chemicals

Strong detergent utilised in lysis buffers for the complete disruption of membranes and denaturation of proteins.

Supplier: VWR Chemicals

Strong detergent utilised in lysis buffers for the complete disruption of membranes and denaturation of proteins.

Supplier: VWR Chemicals

Ethidium bromide solution is a fluorescent stain for visualising nucleic acids in solution or in electrophoresis gels. The solution is provided at a concentration of 0,625 mg/ml. A final working concentration of 0,5 g/ml is easily obtained by adding one drop of solution to 50 ml of molten agarose, running buffer or staining buffer. Ethidium bromide solution in dropper bottles may be stored at room temperature for up to one year.

Supplier: VWR Chemicals

Biological buffers are useful for cell culture in vitro, enzyme assays, and some electrophoretic applications at physiological pH.

Supplier: VWR Chemicals

HEPES is a general purpose buffer available for biological research.

Supplier: VWR Chemicals

Biological buffers are useful for cell culture in vitro, enzyme assays, and some electrophoretic applications at physiological pH.

Supplier: VWR Chemicals

Reagent for stabilisation of buffer formulations and electrophoresis of biological molecules.

Supplier: VWR Chemicals

A biological buffer used for cell culture, in vitro, enzyme assays and some electrophoretic applications at physiological pH.

Supplier: VWR Chemicals

Nucleic Acid Purification Kits and Reagents, RNA Lysis Buffer T

Supplier: VWR Chemicals

Purifies DNA bands 70 bp to 20 kb in length from agarose gels. The DNA band of interest is excised from the gel, dissolved in binding buffer, and efficiently processed in a peqGOLD DNA column. >90% recovery. Elution volume: 30 to 50 µl.

Supplier: VWR Chemicals

BUFFERED PEPTONE WATER 1 * 500 g

Supplier: VWR Chemicals

BUFFER PFRG FOR L-8500, L-8800, L-8900 1 * 1 L

Supplier: VWR Chemicals

BUFFERED PEPTONE WATER +TWEEN-900ML 1 * 6 items