301 Resultados para: "VWR"
Dimetil sulfóxido
Supplier: VWR
Dimetil sulfóxido ≥99.9%, Ultra Pure Grade
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Urea 99.0-100.5% ACS
Supplier: VWR
Urea 99.0-100.5%, cristalizado ACS, VWR Chemicals BDH®
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Sodio tiosulfato 0.10 N en solución acuosa para análisis, VWR Chemicals BDH®
Supplier: VWR
Suitable as a titrant. Made with deionized water.
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VWR® TRIS-Borate-EDTA Buffer, 5X Concentrate, Ultra Pure Grade
Supplier: VWR
TBE is optimized for DNA electrophoresis techniques using both acrylamide and agarose
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VWR® Peptone
Supplier: VWR
High purity protein digests used for media supplements.
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Guanidinio cloruro para bioquímica
Supplier: VWR
Suited for purification of nucleic acids or polypeptides from cell sources and inhibition of both RNase and protease activity.
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Guanidinio cloruro
Supplier: VWR
Denaturant that does not contain anti-caking agent.
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Tripan Azul en solución acuosa 0,4%
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.
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Sodio dodecilsulfato (SDS) para bioquímica
Supplier: VWR
For applications ranging from solubilizing membrane proteins in non-denaturing conditions to creating denaturing conditions during gel electrophoresis.
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EGTA-Na4 en solución acuosa
Supplier: VWR
EGTA (Ácido etilenglicol-bis(2-aminoetiléter)-N,N,N'N'-tetraacético), white crystalline powder, Ultra Pure Grade
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Polivinilpirrolidona 40.000 (K30)
Supplier: VWR
Common reagent for nucleic acid hybridization procedures for detection of DNA/RNA.
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Tween® 20 (Polysorbate), Proteomics Grade
Supplier: VWR
Non-ionic detergent efficiently separates hydrophilic proteins from membrane spanning, hydrophobic proteins without altering biological activity.
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VWR® Phosphate Buffered Saline, Ultra Pure Grade
Supplier: VWR
1X Solution Composition: 137 mM NaCl, 2.7 mM KCl, 9.8 mM Phosphate buffer
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Aceite mineral blanco (petróleo)
Supplier: VWR
Aceite mineral blanco (petróleo) ligero, grado alta pureza
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D(-)-Fructosa, en polvo, grado alta pureza
Supplier: VWR
Fine white powder.
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Ácido DL-málico 99-100.5% para bioquímica
Supplier: VWR
Ácido DL-málico 99-100.5% para bioquímica
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Ácido fórmico ≥94.5%, grado alta pureza
Supplier: VWR
Ácido fórmico ≥94.5%, grado alta pureza
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Etidio bromuro (1 - 10 mg/ml) en solución acuosa
Supplier: VWR
Ethidium Bromide solution is a fluorescent stain for visualizing nucleic acids in solution or in electrophoresis gels. At a concentration of 0.5 µg/ml, ethidium bromide is useful in agarose or acrylamide ges for band detection. It is used to detect as little as 10 ng of nucleic acid. At high concentrations (0.5 - 1.0 µg/ml), it may be used to facilitate purification of DNA in cesium chloride gradient.
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NADH-Na2 trihidrato, grado reactivo
Supplier: VWR
NADH-Na₂ trihidrato, grado reactivo
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Azul nitro-tetrazolio cloruro (NBT)
Supplier: VWR
Azul nitro-tetrazolio cloruro (NBT), grado ultrapuro
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VWR® HEPES, 1M, pH 7.3, Biotechnology Grade
Supplier: VWR
HEPES, 1M, pH 7.3, VWR®
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DNA MW Markers, 100 bp Ladder, AMRESCO
Supplier: VWR
13 fragments ranging from 100 to 3000 bp for easy band identification. Also available pre-mixed with loading dye or with EZ-Vision® One DNA dye.