Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...

Ethyl acetate is used as a solvent for varnishes, lacquers, dry cleaning, stains, fats and nitrocellulose. It is released during the production of artificial silk and leather, and during the ...

Ethyl butyl ketone is used as a solvent and as an ingredient in fragrances. Ethyl butyl ketone can effect you if breathed in and by passing through the skin. The effects of high concentrations may be ...

The Atomic Spectroscopy Group at the National Institute of Standards and Technology (NIST) provides the definitive measurements of atomic spectra. Spectra are specific sets of colors emitted by ...

The introduced approach involves an innovative and available catalyst, potassium acetate, which possesses much suitable ... products were structurally verified via complex cross-analysis (NMR, ESI-MS, ...

Department of Chemistry, Capital Normal University, Hai-Dian District, Beijing 100048, China Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of ...

The Bloomin8 uses Spectra 6 color e-paper display and comes in three size options. The entry-level picture frame has a 7.3-inch Spectra 6 panel. This makes it suitable for personal use and can be ...

In conclusion, although the potency of many of the isoxazole derivatives was less active than the positive control, anti T. cruzi activity was significantly improved by the inclusion of fluorine group ...

From the roots, stems and fruits of Simarouba versicolor (Simaroubaceae) were isolated quassinoids (3, 5-7), triterpenoids (8-14), a mixture of steroids (15-17), the flavonoid kaempferol (18) and the ...