2026 Results for: "MACHEREY-NAGEL"

Supplier: MACHEREY-NAGEL

A pre-dosed NANOCOLOR® tube test for photometric determination of sulphide in water.

Supplier: MACHEREY-NAGEL

Unmodified standard silica layers for TLC.

Supplier: MACHEREY-NAGEL

Polar GC phase.

Supplier: MACHEREY-NAGEL

Medium polar GC phases with autoselectivity.

Supplier: MACHEREY-NAGEL

CHROMABOND® PTS and CHROMABOND® PTL columns are designed for the separation of a two-phase mixture without a separation funnel.

Supplier: MACHEREY-NAGEL

The VISOCOLOR® testkits are devided into VISOCOLOR® alpha, ECO and HE. Every product range offering its specific strenght to provide a tailored test for each and every user and application.

Supplier: MACHEREY-NAGEL

The VISOCOLOR® testkits are devided into VISOCOLOR® alpha, ECO and HE. Every product range offering its specific strenght to provide a tailored test for each and every user and application.

Supplier: MACHEREY-NAGEL

These quantitative filter papers are made from refined pulp and linters. They are purified in a highly developed clean-up process to remove organic and inorganic impurities. This ensures a low ash content of <0,01 %. They are consistent performance and give safe results in gravimetric analyses.

Supplier: MACHEREY-NAGEL

The crimp caps with assembled septa are ready-to-use.

Supplier: MACHEREY-NAGEL

The test paper allows the quick and easy detection of silver ions. These cause red-violet spots on a salmon background. The leaflet describes a method to eliminate interferences of Hg, Cu, Au, Pt and Pd.

Supplier: MACHEREY-NAGEL

These test papers allow quick and easy detection of hydrogen sulphide. This gas occurs in the processing of raw oil. It is toxic even in low concentrations. Therefore, critical points are carefully checked. Sulphide containing solutions also give a positive reaction.

Supplier: MACHEREY-NAGEL

Acylation with HFBA can be used for alcohols, phenols, carboxylic acids, amines, amino acids and steroids forming volatile, stable derivatives suited for GC-FID as well as for GC-ECD detection.

Supplier: MACHEREY-NAGEL

This paper is especially used in water treatment facilities for example for the determination of suspended solids.

Supplier: MACHEREY-NAGEL

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.

Supplier: MACHEREY-NAGEL

The MN 85/90 grade is the most widely used, general purpose glass fiber filter with very good mechanical stability. The filter contains an organic binder.

Supplier: MACHEREY-NAGEL

MN GF-1 is a binder-free glass fiber filter paper that offers fine particle retention, high flow rate and good loading capacity. It is used for high efficiency laboratory filtration as well as air sampling. It is manufactured from borosilicate glass fiber and is resistant towards most organic and inorganic solvents.

Supplier: MACHEREY-NAGEL

MN 617 is a fast filter paper with excellent retention of coarse particles and gelatinous precipitates. This soft filter paper is used for example in routine clean up of biological or organic solutions.

Supplier: MACHEREY-NAGEL

Cellulose acetate membranes have a low protein binding capacity and are suited for aqueous and alcoholic media.

Supplier: MACHEREY-NAGEL

This crimp neck vial has a usable volume of 2 ml.

Supplier: MACHEREY-NAGEL

The VISOCOLOR® testkits are devided into VISOCOLOR® alpha, ECO and HE. Every product range offering its specific strenght to provide a tailored test for each and every user and application.

Supplier: MACHEREY-NAGEL

Accessory for test kit, Membrane filtration kit, includes syringes 20 ml (2), CHROMAFIL® membrane filters 0,45 µm (25)

Supplier: MACHEREY-NAGEL

Methylation with TMSH is recommended for free acids, chlorophenoxycarboxylic acids, their salts and derivatives as well as for phenols and chlorophenols. Lipids or triglycerides can be converted to the corresponding fatty acid methyl esters (FAMEs) by a simple transesterification.

Supplier: MACHEREY-NAGEL

CHROMABOND® QuEChERS mixes with special diamino silica phase are suitable for determination of pesticides in food samples. These remove polar compounds (organic acids, pigments, sugars) from matrices like fruit or vegetables.

Supplier: MACHEREY-NAGEL

These glass plates with a special layer are used for TLC enantiomer separations (e.g. amino acids, thiazolidine derivatives, dipeptides, lactones, α-hydroxycarboxylic acids).

Supplier: MACHEREY-NAGEL

Native fibrous cellulose, purified grade (washed with different eluents) with average degree of polymerization 620–680.
Grade MN 2100ff is a defatted cellulose MN 2100 with a dichloromethane extract <0.02%.

Supplier: MACHEREY-NAGEL

TLC plates and sheets are used for the separations of alkaloids, steroids, aliphatic and aromatic compounds.

Supplier: MACHEREY-NAGEL

PORAFIL® NC membranes are made from cellulose nitrate. They are easily wettable and suited for filtration of aqueous solutions.

Supplier: MACHEREY-NAGEL

CHROMABOND®, Adapters (PVDF) for glass columns (3 and 6 ml)

Supplier: MACHEREY-NAGEL

CHROMABOND® SiOH-H₂SO₄/SA is a combination phase for SPE analysis of PCBs.

Supplier: MACHEREY-NAGEL

CHROMABOND® C18 Hydra is a special octadecyl modified silica phase for more polar analytes in SPE.