Votre recherche pour: MACHEREY-NAGEL

Numéro de catalogue: (MANA701240.650)

Fournisseur: MACHEREY-NAGEL

Description: HMDS is weak TMS donor. If used as sole reagent, it is slow and not very effective. After addition of catalytic quantities (e.g., 1 %) of TMCS or as a mixture with TMCS it is a fast and quantitative reagent for trimethylsilylation of organic compounds.

UOM: 1 * 1 KIT

Promotion

Fournisseur: MACHEREY-NAGEL

Description: Silylation reagent with recommended applications: carboxylic acids, alcohols, phenols, primary and secondary amines and amino acids.

Numéro de catalogue: (MANA701430.201)

Fournisseur: MACHEREY-NAGEL

Description: Methylation with DMF-DMA can be applied for fatty acids, primary amines and partially amino acids forming N-dimethyl-aminomethylene amino acid methyl esters. DMF-DMA is a poor solvent, for this reason it is necessary to use a mixture of DMF-DMA with pyridine, THF, acetone (barbiturates) or another solvent.

UOM: 1 * 1 KIT

Promotion

Numéro de catalogue: (MANA701420.101)

Fournisseur: MACHEREY-NAGEL

Description: Acylation with fluorinated bisacylamides is recommended for alcohols, primary and secondary amines as well as for thiols under mild, neutral conditions.

UOM: 1 * 1 KIT

Promotion

Fournisseur: MACHEREY-NAGEL

Description: Polymeric HPLC phase based on sulfonated spherical PS/DVB resin in ionic form for the separation of organic acids.

Fournisseur: MACHEREY-NAGEL

Description: Polymeric HPLC phases based on sulfonated spherical PS/DVB resins in different ionic forms for the separation of sugars and sugar alcohols.

Numéro de catalogue: (MANA530018)

Fournisseur: MACHEREY-NAGEL

Description: These papers are made hydrophobic (impermeable to water) by impregnation with a silicone. With the aid of these filters, water can be separated from water-immiscible organic solvents in an elegant manner, by means of a simple filtration.

UOM: 1 * 100 ST

Promotion

Numéro de catalogue: (MANA90608)

Fournisseur: MACHEREY-NAGEL

Description: Saltesmo test discs are frequently used for the determination of salt (NaCl) in foodstuffs and in sea water. All reagents are impregnated on the paper, making the test very easy to use even for untrained persons.

UOM: 1 * 30 ST

MSMD Promotion

Numéro de catalogue: (MANA90601)

Fournisseur: MACHEREY-NAGEL

Description: This test paper allows the quick and easy detection of Copper(I) and Copper(II) ions.

UOM: 1 * 40 ST

MSMD Promotion

Numéro de catalogue: (705-0310)

Fournisseur: MACHEREY-NAGEL

Description: QUANTOFIX® test strips meet all requirements of a modern rapid test. The colour of the reactive pad changes depending on the concentration of an analyte in the sample. The evaluation is usually carried out visually by comparison of the reaction colour with a multi-stage colour scale. These test strips are immediately ready-to-use. They do not require additional accessories. The test strips are intended for single use, maintenance or calibration are not required.

UOM: 1 * 1 EA

MSMD Certificats Promotion

Numéro de catalogue: (MANA90747)

Fournisseur: MACHEREY-NAGEL

Description: The test paper allows the quick and easy detection of boric acid and borates. It is impregnated with curcumin, the yellow dye extracted from the roots of Curcuma tinctoria (yellow ginger).

UOM: 1 * 200 ST

MSMD Promotion

Fournisseur: MACHEREY-NAGEL

Description: NUCLEOSIL® C6H5 is a non-endcapped phenyl modified silica phase for HPLC.

Fournisseur: MACHEREY-NAGEL

Description: MN 616 md is slightly more retentive than MN 615 with a corresponding increase in filtration time.

Fournisseur: MACHEREY-NAGEL

Description: Fibrous cellulose impregnated with polyethyleneimine available as POLYGRAM® polyester sheets with or without fluorescent indicator. They are used in analysis of nucleic acids and of mutagenic substances with the ³²P post labelling procedure.

Fournisseur: MACHEREY-NAGEL

Description: Accessory for test kit, Chloride complexing agent for COD determination at chloride levels of 1000 - 7000 mg/l Cl⁻

MSMD

Fournisseur: MACHEREY-NAGEL

Description: Silica adsorbents for thin layer chromatography.