"Dioxide Powder"

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Dioxyde de zirconium ≥99.4% (base métaux sauf Hf) stabilisé, en poudre -100 Mesh

Supplier: Thermo Fisher Scientific

The main use of zirconia is in the production of ceramics. Zirconium dioxide is also used as the solid electrolyte in electrochromic devices As protective coating on particles of titanium dioxide pigments, as a refractory material, in insulation, abrasives and enamels.

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Rouge de phénol, en poudre, Bioréactif réactif de culture cellulaire, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).

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VWR® MCP 100MCT 100, Colorimètres de poche

Supplier: VWR Collection

Ces colorimètres portables sont conçus pour une analyse précise de l'eau.

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Rouge de phénol sel de sodium, en poudre, Bioréactif réactif de culture cellulaire, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red Sodium Salt (PRSS) is a water-soluble anionic fluorescent dye, that possesses an extra Na ion attached with the SO3 group compared to phenol red. It is intended for use in cell culture applications. A solution of phenol red will have a yellow color at a pH of 6,4 or below and a red color at a pH of 8,2 and above.

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D(+)-Biotine ≥97.5%, poudre cristalline blanche réactif de culture cellulaire

Supplier: MP Biomedicals

Storage: +4 °C
D-Biotin is a growth factor present in small amounts in every living cell. It is involved in naturally occurring carboxylation reactions. It occurs mainly bound to proteins or polypeptides. It is more abundant in the liver, kidney, pancreas, yeast and milk. Biotin levels are higher in cancerous tumors than in normal tissues. It is inactivated by binding to avidin.
D-Biotin may be used to elute proteins from avidin/streptavidin resins. It is widely used for dietary supplements and fortified foods. It is also used for tablets and hard-shell capsule preparation due to its pharmaceutical properties.
Essential vitamin that is important for amino acid and energy metabolism, and fatty acid synthesis. It is a prosthetic group in four mammalian carboxylase families and facilitates the binding and transfer of carbon dioxide.
Soluble in water (22 mg/100 mL), ethanol (80 mg/100 mL), more soluble in hot water and in dilute alkalies; insoluble in other common organic solvents. Soluble in 2 M Ammonium hydroxide (50 mg/mL - clear, colorless solution), dimethylformamide (1.7 mg/mL).

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D(+)-Biotine ≥97.5%, poudre cristalline blanche

Supplier: MP Biomedicals

Essential vitamin that is important for amino acid and energy metabolism, and fatty acid synthesis. It is a prosthetic group in four mammalian carboxylase families and facilitates the binding and transfer of carbon dioxide.

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Pourpre de bromocresol, en poudre

Supplier: MP Biomedicals

Bromocresol Purple is used as a pH indicator (5.2-6.8 : yellow to blue-purple). Used in spectrophotometric determination of serum-albumin.

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Test kits, drop count tests

Supplier: Hach

Le test de comptage de gouttes est un moyen simple, facile et économique de tester de nombreux paramètres tels que le chlore, le chlorure, l'oxygène dissous, le dioxyde de carbone, le sulfite, l'azote, le formaldéhyde, etc.

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Rouge de phénol, en poudre ACS

Supplier: MP Biomedicals

Phenol Red Sodium Salt is used as a pH indicator, it is used widely in culture media to identify changes from neutral to acidic pH values.

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Bleu de bromochlorophénol, en poudre

Supplier: MP Biomedicals

Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) gel electrophoresis.

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Tungsten dichloride dioxide ≥99%

Supplier: Thermo Fisher Scientific

Tungsten dichloride dioxide ≥99%

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Bleu de bromophénol, en poudre

Supplier: MP Biomedicals

Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) gel electrophoresis.

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Acide trichloroacétique (cristallisable) ≥99.0%, en poudre ACS

Supplier: MP Biomedicals

Trichloroacetic acid is used in protein precipitation; has been used to determine protein concentration by quantitative precipitation. Used as a decalcifier and fixative in microscopy. A protocol for the precipitation of nucleic acids can be found in Molecular Cloning.
Stability: Long term storage of aqueous solutions of less than 30% strength is not recommended. Decomposition products are chloroform, hydrochloric acid, carbon dioxide and carbon monoxide. Chloride ≤0.001% ; Nitrate ≤0.002%; Phosphate ≤5 ppm; Sulfate ≤0.02%

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Bleu de bromophénol sel de sodium, poudre vert foncé ACS

Supplier: MP Biomedicals

Bromophenol blue is a tracking dye for alkaline and neutral buffer systems. It is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) gel electrophoresis.