Quantitative reaction monitoring using parahydrogen-enhanced benchtop NMR spectroscopy

Abstract

The parahydrogen-induced polarisation (PHIP) NMR signal enhancement technique is used to study H₂ addition to Vaska’s complex (trans-[IrCl(CO)(PPh₃)₂]) and a mixture of Vaska’s complex derivatives with benchtop (1 T) NMR detection.

Indirect hard modeling of low resolution benchtop NMR data for the kinetic fitting of a complex organic reaction

Abstract

A benchtop NMR instrument in combination with spectral hard modeling enabled monitoring and subsequent kinetic fitting of a chlorination reaction. Different modes were investigated, an NMR tube, re-circulating batch and single pass continuous flow.

Evaluation of pure shift NMR methods for the analysis of complex metabolite mixtures with a benchtop NMR spectrometer

Abstract

A comparison of ultra-resolved pure shift NMR techniques, mitigating the resolution problem of compact NMR instruments, showed that the J-resolved double echo is the most performant technique, enabling the profiling of biological complex mixtures.

Detection of honey adulteration using benchtop ¹H NMR spectroscopy

Abstract

Benchtop NMR analysis combined with model-based fitting protocols can detect commercial honey adulteration down to 5 wt%.

Introducing bioderived solvents for safer and more sustainable ¹⁹F benchtop NMR analysis of pyrolysis oils

Abstract

Benchtop NMR analyses of bio-oils are made safer and more sustainable by replacing DMF with bio-derived solvents.

Advances in NMR spectroscopy of small molecules in solution