Unfortunately, many 1H-NMR spectra are severely overlapped due to the multiplet structure caused by homo-nuclear scalar couplings. "Pure shift" NMR spectra, also known as broadband homonuclear ...

Manual tuning is recommended for anything other than 1 H and 13 C. Manually tuning usually gives the best results in terms of sensitivity and lineshape but for routine samples the difference is slight ...

Common NMR active nuclei are 1H, 13C, 31P, 15N, 29Si, and many more. Nearly every element has at least one isotope that is NMR active. Since then, NMR spectroscopy has become an indespensible tool for ...

This study presents efficient CaO/ZnO composite catalysts for biodiesel production from soybean oil, achieving 99% conversion at room temperature in 25 minutes.