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

Código de Artigo: 00407.06

UOM: 1 * 5 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 00175.14

UOM: 1 * 25 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 00267.18

UOM: 1 * 50 g

Fornecedor: Thermo Fisher Scientific

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Descrição: FTO glass materials have thermal and heated glass performance properties, while also increasing light transmittance and optimising electrical conductivity. Fluorine doped tin oxide is relatively stable under atmospheric conditions, chemically inert, mechanically hard, high-temperature resistant, has a high tolerance to physical abrasion and is less expensive than indium tin oxide.

Código de Artigo: SIAL735183-5EA

UOM: 1 * 5 unid.

Fornecedor: Merck

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

Código de Artigo: 00399.18

UOM: 1 * 50 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 00065.30

UOM: 1 * 250 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 46709.06

UOM: 1 * 5 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 00102.22

UOM: 1 * 100 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 00628.03

UOM: 1 * 1 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: TCIAB1123-10G

UOM: 1 * 10 g

Fornecedor: TCI

Promoção

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

Código de Artigo: 00295.22

UOM: 1 * 100 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 00120.06

UOM: 1 * 5 g

Fornecedor: Thermo Fisher Scientific

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

Código de Artigo: 25333.327

UOM: 1 * 2,5 L

Fornecedor: VWR Chemicals

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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: VARIPL2083-6001

UOM: 1 * 1 unid.

Fornecedor: VARIAN

Promoção

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.

Código de Artigo: ICNA0219471401

UOM: 1 * 1 g

Fornecedor: MP Biomedicals

Promoção

Descrição: Cerium(III) sulphate 99.9% (REO, rare earth oxide basis)

Código de Artigo: ACRO378660500

UOM: 1 * 50 g

Fornecedor: Thermo Fisher Scientific

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