Sentence examples for methyl protons of from inspiring English sources

The methyl protons of dl β-OHB were visible as a doublet at 1.25 ppm.

In the brain MRS, the methyl protons of dl β-OHB were visible as a doublet at 1.25 ppm. Figure 1 shows relevant regions of the spectra (0 1.7 ppm) measured at different times after oral supplementation of dl sodium β-OHB.

3 grams of 2-13C and/or 3-13C pyruvate were dissolved in 1 kg of D2O (99.9%) and the pH of the solution was adjusted to ~13.0 by 2.5 mM NaOD to deuterate the methyl protons of pyruvate by proton deuteron exchange.

The interactions between the methoxy protons of PMMA and the methyl protons of PVAc do not contribute to the miscibility of the blend and were explained as originating from contacts of unlike polymers in the interphase.

Under conditions of blend miscibility, chloroform at 40°C and toluene at 30°C, NOESY results indicated the presence of two different types of intermolecular interactions between (i) methoxy protons of PMMA and methyne protons of PVAc; (ii) methoxy protons of PMMA and methyl protons of PVAc.

The methyl protons of 3HV were assigned at δ0.7 0.8 ppm.

An upfield shift of the methyl protons on 1,4-(MeO)2C6H4 was observed on the H NMR spectrum of the mixture, indicating the formation of complex.

The presence of the methyl proton of DMSO and the absence of observable water resonance was confirmed on 1H NMR spectra of the dialysate.

Finally, the distances from the δ-methyl protons of a Leu residue (i) to those of Leu i+2, which approximately correspond to the diameter of the helix in the central hydrophobic segment, are on average 10 Å.

However, we could not obtain a sufficiently pure sample of DMH to use for quantitation, so we averaged concentrations for 1-methylhistidine and dimethylglycine, fitted to the imidazole and N-methyl protons of DMH, respectively.

The presence of geminal dimethyl groups (CH3-12 and CH3-13) was revealed by the HMBC correlations of these methyl protons to the other methyl carbon to each other (H3-12 to C-13, and H3-13 to C-12), and the correlations from both methyl protons (H3-12 and H3-13) to attached quaternary carbon (C-11) and two methylene carbons (C-1 and C-10).