Procurou por: Óxido de Lântanio (III)

Fornecedor: Thermo Fisher Scientific

Descrição: Ytterbium ≥99.9% (REO, rare earth oxide basis), ingot

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Lântanio ≥99.9% (REO, rare earth oxide basis), pieces

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Praseodímio 99% (REO, rare earth oxide basis), ingot

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Gadolinium nitride ≥99.5% (REO, rare earth oxide basis)

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Dysprosium ≥99.8% (REO, rare earth oxide basis), ingot

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Samário ≥99.9% (REO, rare earth oxide basis), ingot

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Europium ≥99.9% (REO, rare earth oxide basis), ingot

MSDS Certificados

Fornecedor: Thermo Fisher Scientific

Descrição: Lutetium ≥99.9% (REO, rare earth oxide basis), pieces

MSDS Certificados

Código de Artigo: (TCIAB1123-10G)

Fornecedor: TCI

Descrição: Bis(tetrabutylammonium)dichromate ≥97.0% (by titrimetric analysis) oxidizing reagent

UOM: 1 * 10 g

Promoção

Fornecedor: MP Biomedicals

Descrição: Storage: -20°C, desiccate
This is an ultrapure NAD, chromatographically purified to remove trace inhibitors.
β-NAD, a pyridine nucleotide and biologically active form of nicotinic acid, is a coenzyme necessary for the catalytic reaction of certain enzymes. It occurs in living cells primarily in the oxidized state. Serves as a coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain.
Many metabolites and enzymes of biological interest are present in tissues at low concentrations. With the use of β-NAD as a catalyst intermediate and several enzymes in a multistep system, known as enzyme cycling, much greater sensitivity for detection of these components is achieved. The reduced form, β-NADH, is fluorescent whereas β-NAD is not. This difference in fluorescence provides a sensitive fluorescent measurement of the oxidized or reduced pyridine nucleotides at concentrations down to 10-7 M.
Electron acceptor. β-NAD is a carrier for hydride ion, forming b-NADH. Hydride ion is enzymatically removed from a substrate molecule by the action of dehydrogenases such as malic dehydrogenase and lactic dehydrogenase. Such enzymes catalyze the reversible transfer of a hydride ion from malate or lactate to b-NAD to form the reduced product, b-NADH. Unlike b-NAD which has no absorbance at 340 nm, b-NADH absorbs at 340 nm (EmM = 6.22). The increase in absorbance at 340 nm with the formation of b-NADH is the basis for measurement of activity of many enzymes.

Fornecedor: VWR Chemicals

Descrição: Solução saturada de óxido de cromo hexavalente em H2SO4 95%

MSDS Certificados

Fornecedor: Biotium

Descrição: Nitric oxide donors, nitric oxide synthase inhibitors and nitric oxide detection reagents and kits for nitric oxide (NO) studies.

Fornecedor: VARIAN

Descrição: These hydrophilic polymers are suitable for both aqueous SEC and organic GPC using the majority of polar organic solvents. The two types are chemically similar that can be used together across a wider molecular weight range with aqueous and organic polymers.

Código de Artigo: (VELPA00000157)

Fornecedor: VELP SCIENTIFIC

Descrição: Protein analyser, accessory, Copper oxide, 50 g

UOM: 1 * 50 g

Promoção

Fornecedor: Thermo Fisher Scientific

Descrição: Erbium triacetate tetrahydrate ≥99% (REO, rare earth oxide basis)

MSDS Certificados

Código de Artigo: (TCIAD1811-25G)

Fornecedor: TCI

Descrição: 2,6-Di-tert-butyl-4-methoxyphenol ≥98.0% (by GC) oxidation inhibitor

UOM: 1 * 25 g

Promoção