Signals for water occur at different frequencies in 1 H NMR spectra depending on the solvent used ... Acetone 2.8 Acetonitrile 2.1 Benzene 0.4 Chloroform 1.6 Dimethyl Sulfoxide 3.3 Methanol 4.8 ...

The first NMR spectra were first published in the same issue of Physical Review in January of 1946. Bloch and Purcell were jointly awarded the Nobel Prize in Physics in 1952 for their discovery of ...

13C, 11B, 31P, 29Si, 195Pt, or practically any "X" nucleus with automatic probe-tuning. This new, truly state-of-the-art NMR spectrometer, operating at 300MHz for 1H observation was installed in ...

A methanol-to-oil ratio of 40:1 yielded the highest conversion under mild conditions. The 1 H NMR spectrum of the resulting biodiesel confirmed a 99 % yield, consistent with results obtained using ...