2952 Results for: "MACHEREY-NAGEL"

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Heptafluorobutyric anhydride (HFAA) acylation reagent, for GC derivatisation

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.

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Glass microfiber filters without binder, grade MN GF-1

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.

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Membrane filters, PORAFIL® CA

Supplier: MACHEREY-NAGEL

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

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Crimp neck vials, N 13

Supplier: MACHEREY-NAGEL

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

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Colorimetric rapid tests, manganese, VISOCOLOR®

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.

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QuEChERS mixes, clean-up, CHROMABOND®

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.

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TLC plates, special layers, glass backing, CHIRALPLATE

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).

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Cellulose MN 2100ff adsorbents for column chromatography (cellulose MN 2100 defatted)

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%.

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TLC plates, aluminium oxide, Alox

Supplier: MACHEREY-NAGEL

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

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Accessories for empty solid phase extraction columns CHROMABOND®

Supplier: MACHEREY-NAGEL

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

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SPE columns, PCB analysis, CHROMABOND® SiOH-H2SO4/SA

SPE columns, PCB analysis, CHROMABOND® SiOH-H₂SO₄/SA

Supplier: MACHEREY-NAGEL

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

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SPE columns, CHROMABOND® C18 Hydra

Supplier: MACHEREY-NAGEL

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

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SPE columns, CHROMABOND® C4

Supplier: MACHEREY-NAGEL

CHROMABOND® C4 is a butyl modified silica phase for SPE.

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Membrane filters, PORAFIL® PE

Supplier: MACHEREY-NAGEL

Polyester membranes are particularly suited for fine filtration, dust analysis, aerosol analysis and ultra-purification of solvents.

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Gel permeation chromatography columns, NUCLEOGEL® GPC

Supplier: MACHEREY-NAGEL

Polymer based phases for size exclusion chromatography (SEC) or gel permeation chromatography (GPC) of water insoluble substances.

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HPLC columns, sugar analysis, NUCLEOGEL® SUGAR 810

Supplier: MACHEREY-NAGEL

Polymeric HPLC phases based on sulphonated spherical PS/DVB resins in different ionic forms for the separation of sugars and organic acids.

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HPLC columns, NUCLEOSIL® CN/CN-RP

Supplier: MACHEREY-NAGEL

NUCLEOSIL® CN and CN-RP are cyano (nitrile) modified silica phases for HPLC.

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Ferrules for gas chromatography

Supplier: MACHEREY-NAGEL

Ferrules for the connection of capillary GC columns.

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Chiral HPLC columns, NUCLEODEX

Supplier: MACHEREY-NAGEL

Cyclodextrin modified silica phases for HPLC enantiomer separation. These phases are especially suited for the control of optical purity and for the analysis of positional and cis-trans isomers.

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Shell vials, N 8 and N 12

Supplier: MACHEREY-NAGEL

These shell vials for HPLC analyses have the advantage of an easy handling.

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SPE columns, CHROMABOND® C8

Supplier: MACHEREY-NAGEL

CHROMABOND® C8 is an octyl modified silica phase for SPE.

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Test strips, swimming pool test

Supplier: MACHEREY-NAGEL

These strips are used for quick and easy determination of water qualities in swimming pool. The test provides valuable results about the water hardness, the total alkalinity, free and total chlorine and pH.