"uvasol"

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 five typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph. Eur. and ACS.

Supplier: Merck

Etile acetato, Uvasol® per spettroscopia, Supelco®

Supplier: Merck

ter-Butil metil etere, Uvasol® per spettroscopia, 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 five typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph. Eur. and ACS.

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.

Supplier: Merck

Potassium bromide is transparent from the near UV to long wave IR wavelengths. In IR-spectroscopy, solid samples which are difficult to melt or dissolve in any suitable IR-transmitting solvent, are analysed by grinding with potassium bromide powder, and pressing into a disc. This procedure has a high quality demand of the used potassium bromide. Potassium bromide Uvasol® is adjusted to a mean particle size of 150 μm. This is sufficient for the preparation of perfectly good pellets without the need for further pre-treatment and the associated risk of contamination. It also retains its powdery form over a period of years if stored in an airtight condition. Its physical suitability for pelletising is checked by a special application test and its chemical purity established by full spectrum FT-IR analysis.

Supplier: Merck

Tetrametilsilano, Sigma-Aldrich®

Supplier: Merck

Benzene-D6 (99.6% D), MagniSolv™ per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

Benzene-D6 (99.96% D) per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

N,N-Dimetilformammide-D7 (99.5% D) per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

Deuterio ossido ≥99.95% (Isotopic), MagniSolv™ per spettroscopia NMR pH 7 (H₂O, 20 °C), Sigma-Aldrich®

Supplier: Merck

Metanolo-D4 (99.8% D), MagniSolv™ per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

Diclorometano-D2 (99.8% D) per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

Cloroformio-D1 (99.96% D) per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

Cloroformio-D1 (99.8% D) per spettroscopia NMR, Sigma-Aldrich®

Supplier: Merck

MagniSolv™ deuterated solvents provide:
• Reliable results in the NMR-spectra by excellent chemical purity and highest isotopic enrichment.
• Reliable deuteration degrees.
• Low residual water content.
• Determination of water content in two ways.