301 Resultados para: "VWR"

Supplier: VWR

High-purity extract used for media supplements.

Supplier: VWR

Amonio hierro (III) sulfato dodecahidrato ACS

Supplier: VWR

Ácido sulfúrico 95.0-98.0% ACS

Supplier: VWR

Ácido nítrico 68,0 - 70,0% ACS

Supplier: VWR

Negatively charged anionic detergents are strong detergents utilized in lysis buffers for the complete disruption of membranes and denaturation of proteins. Anionic detergents are also used in denaturing gel electrophoresis.

Supplier: VWR

VWR offers an extensive line of acrylamide and bis-acrylamide pre-weighed powder blends, pre-mixed stock solutions, and ready-to-use solutions for customized polyacrylamide gel electrophoresis of proteins and PAGE of nucleic acids. Our ultra pure (> 99.9%) acrylamide and bis-acrylamide powders provide the flexibility to prepare solutions having concentrations and ratios for all electrophoresis applications. Liquid blends minimize the handling of neurotoxic acrylamide.

Supplier: VWR

Blue BANDit™ is a safer and more environmentally friendly alternative to traditional Coomassie® Blue staining procedures.

Supplier: VWR

Substrate for the detection of horseradish peroxidase commonly used in ELISA. Read at 450 nm.

Supplier: VWR

N,N-Dimetilformamida, grado reactivo

Supplier: VWR

Concentrated BSA solution (Albumin, Bovine, Fraction V – Cold Alcohol Isolation) in 0.85% sodium chloride and contains 0.1% sodium azide (as a preservative for stability).

Supplier: VWR

1X Solution Composition: 137 mM NaCl, 2.7 mM KCl, 9.5 mM Phosphate buffer.

Supplier: VWR

Glicina, grado proteómico

Supplier: VWR

Ammonium persulphate forms free radicals when dissolved in water, which initiate polymerisation of acrylamide solutions.

Supplier: VWR

TRIS 1.0M Solution pH 7.5, VWR®

Supplier: VWR

Pre-measured tablets for convenient preparation of 1X PBS solution, pH 7.3-7.5.

Supplier: VWR

Supplier: VWR

White waxy solid. Hydroxyl Number: 40-60. Non-ionic - containing no charge (polyoxyethylenes or alkyl glucosides). Non-ionic detergents are suited for solubilizing embrane proteins without altering biological activity.

Supplier: VWR

Dextrano sulfato 500, sal sódica (Mr ~ 500000 g/mol)

Supplier: VWR

Aápurineáderivative with essential functions for all known life forms. Required for energy metabolismáand as a component of DNA and RNA.áComponent of many culture media.á

Supplier: VWR

A cationic azine dye slightly soluble in water and ethanol. Used as a weak nuclear stain and as a supravital stain of fresh peripheal blood.

Supplier: VWR

EDTA sal dipotásica dihidrato, grado ultrapuro

Supplier: VWR

Tris (hydroxymethyl) aminomethane

Supplier: VWR

Lysogeny broth (LB) is a nutritionally rich medium used for the growth of bacteria.

Supplier: VWR

TAE is an extensively used buffer for agarose gel electrophoresis applications requiring high resolution and separation of high molecular weight, double-stranded DNA

Supplier: VWR

Sodium acetate buffer, VWR®, 3 M

Supplier: VWR

Sodio acetato trihidrato ACS

Supplier: VWR

Agarose SFR™ (Super Fine Resolution) is a high resolution sieving agarose with excellent clarity. DNA bands differing in size by 2% can be resolved in the range of 200 bp to 1000 bp.

Supplier: VWR

Metanol ≥99.8% para HPLC

Supplier: VWR

Ácido trifluoroacético grado biotecnología

Supplier: VWR

A pre-mixed dye solution used in cell culture applications to determine cell viability. A researcher can remove a sample of cells from culture and combine in a 1:1 ratio with the Trypan Blue solution. Under the microscope, dead cells will appear a blue color and viable cells will appear clear and translucent. Using a hemacytometer (gridded microscope slide), a researcher can quantify the percentage of dead cells within a population. Stained cells are ready for counting within five minutes.