246 Results for: "UNISOLV® SOLVENTS "
Solvent ASTM D2896, Chlorobenzene/Acetic acid-mixture (2/1 v/v), TBN solvent for synthesis, Sigma-Aldrich®
Supplier: Merck
Solvent ASTM D2896, Chlorobenzene/Acetic acid-mixture (2/1 v/v), TBN solvent for synthesis, Sigma-Aldrich®
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Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Supelco®
Supplier: Merck
Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Supelco®
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HPLC adapters for solvent supply and waste solvent
Supplier: Merck
Specially developed screw caps for direct instrument connection of Merck S 40 threaded bottles ensure safe handling of solvents in the lab and protect human health, the environment, as well as solvent quality.
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Solvent inlet filters
Supplier: Merck
Inlet filter assembly, PE filter, Pore size: 10 μm
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Solvent desorption tubes, Supelco®
Supplier: Merck
These LpDNPH cartridges are suitable for sampling carbonyls in ambient, indoor, and industrial atmospheres. The derivatives are eluted from the cartridge in acetonitrile and are analysed by HPLC.
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Solvent removal systems, demonstration set
Supplier: Merck
This set is available for demonstration purposes to show the safe, convenient and contamination free usage of the solvents in barrels and drums.
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Accessories for solvent removal systems, Merck
Supplier: Merck
Drum Pump, Pressure reducer with integrated overpressure relief
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Accessories for solvent desorption tubes, Supelco®
Supplier: Merck
Cartridge adapters for S10, H10, H30
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Solvent screen, certified reference material, Supelco®
Supplier: Merck
Solvent Screen, Supelco®, Certified reference material
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Residual Solvents Mixture - Class I, Pharmaceutical Secondary Standard; Certified Reference Material, Supelco®
Supplier: Merck
Organic Standard, Residual Solvents Mixture - Class I
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White spirit, 150…200 °C, Sigma-Aldrich®
Supplier: Merck
White spirit, 150…200 °C, Sigma-Aldrich®
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Residual Solvents Mixture - Class IIB, Pharmaceutical Secondary Standard; Certified Reference Material, Supelco®
Supplier: Merck
Organic Standard, Residual Solvents Mixture - Class IIB
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Residual Solvents Mixture - Class IIA, Pharmaceutical Secondary Standard; Certified Reference Material, Supelco®
Supplier: Merck
Organic Standard, Residual Solvents Mixture - Class IIA
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Residual Solvents Mixture - Class IIC, Pharmaceutical Secondary Standard; Certified Reference Material, Supelco®
Supplier: Merck
Organic Standard, Residual Solvents Mixture - Class IIC
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Organic reference standard, Solvent Yellow 124, analytical standard, Supelco®
Supplier: Merck
Solvent Yellow 124 is a marker dye, generally used in diesel oil as a green colorant, which can be analysed using high performance liquid chromatography method (HPLC). It is mainly used to prevent the misuse of low tax diesel fuel and as to also calculate the adulteration of road fuel with low tax diesel fuel.
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Supelco® Organic Reference Standard, Residual Solvents in Packaging Material Mixture 2
Supplier: Merck
Organic Standard, Residual solvents in packaging material mixture 2
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1-Bromopropane for synthesis, Sigma-Aldrich®
Supplier: Merck
1-Bromopropane for synthesis, Sigma-Aldrich®
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Residual Solvents Class 1 PT, Proficiency Testing Material, Supelco®
Supplier: Merck
Residual Solvents Class 1 PT, Proficiency Testing Material
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1-Bromopropane, Sigma-Aldrich®
Supplier: Merck
1-Bromopropane, Sigma-Aldrich®
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Benzotrifluoride, Sigma-Aldrich®
Supplier: Merck
Benzotrifluoride, Sigma-Aldrich®
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Benzotrifluoride for synthesis, Sigma-Aldrich®
Supplier: Merck
Benzotrifluoride for synthesis, Sigma-Aldrich®
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Accessories and replacement parts for vacuum manifolds, Visiprep
Supplier: Merck
Solvent guide needles, PTFE, For: 12/24-port manifold
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n-Heptane, 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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n-Heptane, LiChrosolv® for liquid chromatography, Supelco®
Supplier: Merck
With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.
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Reagents for Karl Fischer titrations, Aquastar®, Supelco®
Supplier: Merck
The Aquastar® range is designed to provide reagents for the determination of water by Karl Fischer titration of a wide range of substrates and by a variety of methodologies. These include reagents for one- or two-component systems; combined coulometric reagents; solvents for oils and fats; reagents and solvents for determination of water in ketones and aldehydes. Calibration standards are also available.
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Residual Solvents Class IIA PT, Proficiency Testing Material, Supelco®
Supplier: Merck
Residual Solvents Class IIA PT, Proficiency Testing Material
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Withdrawal systems for barrels and drums
Supplier: Merck
Merck offers a broad variety of withdrawal systems that are tailor-made for barrels and drums. They are designed to ensure safe, easy and efficient solvent withdrawal-even of residual quantities-while meeting all relevant safety regulations.
The integrated solvent supply systems directly connect the solvent to the instrument or product line where it is needed. We provide systems for manual pressure build-up as well as inert gas pressurising, supplemented by a comprehensive selection of reducers, adapters and couplings that allow easy interconnection of all components. This way the user can precisely manage his solvent flow and thus optimizes the processes-and at the same time minimizes risks for the employees and the environment.
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Dimethyl sulphoxide, SupraSolv® for headspace gas chromatography, Supelco®
Supplier: Merck
SupraSolv® solvents for headspace gas chromatography are developed particularly for the analysis of residual
solvents in drug substances, excipients and drug products according to ICH, Ph. Eur. and USP - SupraSolv® headspace solvents are tested for all residual solvents defined by the ICH.