179513 Results for: "Merck"

EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. Merck declare the EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

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Hydrofluoric acid 38 - 40%, Supelco®

Supplier: Merck

Hydrofluoric acid 38 - 40%, Supelco®

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Charcoal activated, granulated, extra pure, Ø ∼1,5 mm

Supplier: Merck

Charcoal activated, granulated, extra pure, Ø ∼1,5 mm

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Lanthanum(III) oxide, Supelco®

Supplier: Merck

Lanthanum(III) oxide, Supelco®

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Quartz, fine-granular analytical reagent, washed, calcinated, Supelco®

Supplier: Merck

Quartz, fine-granular analytical reagent, washed, calcinated, Supelco®

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1,1-Dichloroethylene stabilised for synthesis, Sigma-Aldrich®

Supplier: Merck

1,1-Dichloroethylene stabilised for synthesis, Sigma-Aldrich®

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4-Bromoaniline for synthesis, Sigma-Aldrich®

Supplier: Merck

4-Bromoaniline for synthesis, Sigma-Aldrich®

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Manganese(IV) oxide for synthesis

Supplier: Merck

Manganese(IV) oxide for synthesis

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Sebacic acid for synthesis, Sigma-Aldrich®

Supplier: Merck

Sebacic acid for synthesis, Sigma-Aldrich®

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Phenylphosphonic dichloride, Sigma-Aldrich®

Supplier: Merck

Phenylphosphonic dichloride, Sigma-Aldrich®

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N-Lauroylsarcosine sodium salt for synthesis, Sigma-Aldrich®

Supplier: Merck

N-Lauroylsarcosine sodium salt for synthesis, Sigma-Aldrich®

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HPLC columns, Purospher® STAR RP-18 endcapped

Supplier: Merck

Fast method development of complex samples across the pH range from 1,5 to 10,5 with different mobile phases and temperature conditions.
Purospher® STAR RP-18 endcapped HPLC columns are designed for universal use. Basic, neutral and metal-chelating compounds can easily be separated with simple mobile phases – naturally without peak tailing. Thanks to its outstanding performance and stability, Purospher® STAR RP-18 endcapped offers maximum flexibility in method development. Robust methods can be developed over the entire pH range from 1,5 to 10,5. High pH-stability allows the separation of strongly basic compounds with alkaline eluents. The combination of high purity silica, best all-round retention characteristics, outstanding pH stability up to pH 10,5, and suitability for up to 100% aqueous mobile phases, make Purospher® STAR RP-18 endcapped an all-round top performance column, almost universal in its range of applications.

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Potassium hexacyanoferrate(III), EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

Supplier: Merck

Potassium hexacyanoferrate(III), EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

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2-Methylbutane, Uvasol® for spectroscopy, Supelco®

Supplier: Merck

Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol® solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol® solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph Eur and ACS.

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Isoamyl butyrate, Sigma-Aldrich®

Supplier: Merck

Isoamyl butyrate, Sigma-Aldrich®

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9,10-Anthraquinone for synthesis, Sigma-Aldrich®

Supplier: Merck

9,10-Anthraquinone for synthesis, Sigma-Aldrich®

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Ethyl-3-methyl-3-phenylglycidate (mixture of cis and trans isomers) for synthesis, Sigma-Aldrich®

Supplier: Merck

Ethyl-3-methyl-3-phenylglycidate (mixture of cis and trans isomers) for synthesis, Sigma-Aldrich®

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Squalene, Sigma-Aldrich®

Supplier: Merck

Squalene, Sigma-Aldrich®

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1,6-Diisocyanatohexane for synthesis, Sigma-Aldrich®

Supplier: Merck

1,6-Diisocyanatohexane for synthesis, Sigma-Aldrich®

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Paraffin wax blended with synthetic polymers, Solidification point: 56-58°C, in pastille form, Histosec® embedding agent for histology, with DMSO, Sigma-Aldrich®

Supplier: Merck

Histosec® pastilles is an embedding medium for histology of samples of human origin. It is a paraffin enriched with polymers, also available without the addition of DMSO (dimethyl sulfoxide). DMSO increases the rate of penetration of paraffin and provides additional preservation of the tissue structures. Its melting range is between 56 - 58 °C and, within this range any specimen can be processed without fear of damage irrespective of the method used.