2946 Results for: "MACHEREY-NAGEL"

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SPE sorbents, CHROMABOND®

Supplier: MACHEREY-NAGEL

The high purity CHROMABOND® adsorbents can be used for a self-filling of SPE columns or further analytical applications.

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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.

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Qualitative filter papers, grades MN 619 de and 619 de 1/4, circles and folded filters

Supplier: MACHEREY-NAGEL

MN 619 de is an extra dense filter paper for excellent clarification of cloudy suspensions. Maximum retention capacity in qualitative range for fine particle filtration e.g. in chemical analysis.

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Hardened quantitative filter papers, ashless wet-strengthened grades, MN 1640

Supplier: MACHEREY-NAGEL

These wet strengthened hard smooth filter papers are made of refined pulp and linters and have a low ash content. They are often used for quantitative routine procedures and for analytical gravimetric applications.

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N-Methyl-bis-trifluoroacetamide acylation reagent, for GC derivatisation

Supplier: MACHEREY-NAGEL

This derivitisation reagent is recommended for alcohols, primary and secondary amines as well as for thiols under mild, neutral conditions. MBTFA also forms very volatile derivatives with carbohydrates.

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N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) silylation reagent, for GC derivatisation

Supplier: MACHEREY-NAGEL

MBDSTFA is a silylation reagent that donates a tert-butyldimethylsilyl group (TBDMS) for derivatizing active hydrogen atoms in hydroxyl, carboxyl and thiol groups, primary and secondary amines as well as amino acids. Fast reactions (typically 5–20 min) with high yields (> 96 %). By-products are neutral and volatile.

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NANOCOLOR® Photometric Tube Test Kits for Copper

Supplier: MACHEREY-NAGEL

Photometric test kits for the determination of copper in water samples.

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HPLC columns, NUCLEOSHELL® RP 18plus

Supplier: MACHEREY-NAGEL

NUCLEOSHELL® RP 18plus based on core-shell particle technology for fast and efficient HPLC.

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Capillary columns, OPTIMA® 5 HT

Supplier: MACHEREY-NAGEL

Nonpolar silarylene GC phase with low bleeding and high temperature stability.

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SPE columns, CHROMABOND® HILIC

Supplier: MACHEREY-NAGEL

CHROMABOND® HILIC is an ammonium – sulfonic acid modified silica phase for SPE.

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HPLC columns, NUCLEODUR® C4 ec

Supplier: MACHEREY-NAGEL

NUCLEODUR® C4 ec is a medium density monomeric butyl modified silica phase for HPLC.

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VISOCOLOR® Colorimetric Test, Silica

Supplier: MACHEREY-NAGEL

Reagents for the determination of silica in water samples.

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Test strips, dialysis, peroxides, DiaQuant®

Supplier: MACHEREY-NAGEL

The DiaQuant® product line is specifically designed for the dialysis environment to test rinse and feed water, as well as sufficient potency levels of disinfectant when storing dialysis equipment. All tests are simple and fast without any mixing or mess. Our proven technology makes testing reliable and accurate, thus providing a safe environment for your patients.

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Test strips, Active Oxygen, QUANTOFIX®

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. The test strips are intended for single use, maintenance or calibration are not required.

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SPE columns, PFAS, CHROMABOND

Supplier: MACHEREY-NAGEL

Special phase for SPE analysis. For enrichment of PFAS from water, textiles and sediments (contaminated soils). Polymeric combination phase with weak anion exchanger, highly porous, spherical particles.

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HPLC columns, PFAS Delay, NUCLEODUR®

Supplier: MACHEREY-NAGEL

NUCLEODUR PFAS Delay columns trap and therefor delay system-related PFAS contaminants, ensuring trace level analysis of PFAS in your samples. NUCLEODUR PFAS Delay reversed phase is hydrophobic with distinct polar selectivity for special PFAS analysis. Suitability for PFAS analysis is assured through qualified batch analysis.

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HPLC columns, NUCLEOSIL® C18 Nautilus

Supplier: MACHEREY-NAGEL

NUCLEOSIL® C18 Nautilus is an endcapped octadecyl modified silica phase with an embedded polar group, using for HPLC.

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VISOCOLOR® Colorimetric Test, Potassium

Supplier: MACHEREY-NAGEL

Reagents for the determination of potassium in water samples.

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VISOCOLOR® Colorimetric Test, Chloride

Supplier: MACHEREY-NAGEL

Reagents for the determination of chloride in water samples.

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SPE columns, CHROMABOND® PCA

Supplier: MACHEREY-NAGEL

CHROMABOND® PCA is a propylcarboxylic acid modified silica cation exchanger for SPE.

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In-line filters, Valco

Supplier: MACHEREY-NAGEL

In-line filters for liquid chromatography.

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Capillary columns, fused silica

Supplier: MACHEREY-NAGEL

The retention gap technique in combination with on-column injection allows concentration of a large sample volume in the capillary column. The retention gap depends on the solvent used:

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HPLC columns, biochemical analysis, NUCLEOGEL® RP

Supplier: MACHEREY-NAGEL

Polymer based reversed phase columns for biochemical applications.

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Anion exchange HPLC columns, NUCLEOGEL® Anion I

Supplier: MACHEREY-NAGEL

This strongly basic polymer-based anion exchange column is used for the analysis of inorganic anions. Contrary to silica-based phase the column is also suited for fluoride analysis.