Forty years of Progress in Nuclear Magnetic Resonance Spectroscopy

Emsley, J. W.; Feeney, J.

doi:10.1016/j.pnmrs.2007.01.002

Cited by 37 publications

(11 citation statements)

References 188 publications

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“…For example, the first article on the characterisation of nuclear magnetic moments was published in 1924, but the first commercial NMR spectrometer did not arrive until 1952, while the now commonplace Fourier Transform technology would take a further 17 years to appear. 21 With this in mind, we show that the first tentative steps along this pathway have been taken by 2D-IR. We review the progress made in applying 2D-IR to a range of problems, from mixture analysis to biomedically-relevant measurements and high throughput screening.…”

Section: Introductionmentioning

confidence: 73%

Two-dimensional infrared spectroscopy: an emerging analytical tool?

Fritzsch

Hume

Minnes

et al. 2020

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Section: Introductionmentioning

confidence: 73%

Two-dimensional infrared spectroscopy: an emerging analytical tool?

Fritzsch

Hume

Minnes

et al. 2020

Analyst

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“…The latter is not affected by the storage thanks to the activity of natural antioxidants such as phospholipids and tocopherols that protect against the degradation of the fatty acids. Indeed, a molecule of tocopherol can protect 103 to 106 molecules of unsaturated FAs 25 .…”

Section: Fatty Acids Quantitative Determination Of Argan Oil By 1 H Nmentioning

confidence: 99%

The use of tris (tetraphenylimidodiphosphinate) of praseodymium chemical shift reagent in proton NMR for the evaluation of the argan oil fatty acids autoxidation and the analysis of the argan pulp fatty acids

et al. 2019

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Proton NMR is a method of molecular investigation that has its limitations when applied to complex molecules or molecules with many nearly equivalent sites. Previous studies have resorted to the use of paramagnetic chemical shift reagents, having as formula tris (tetraphenylimidodiphosphinate) of lanthanides ln((tpip.)3. The use of reagent Pr(tpip)3 in proton RMN has allowed us to evaluate the autoxidation of fatty acids mixture (stored 6 and 12 months after oil extraction) by the dosage of saturated and unsaturated acids on the one hand, and that of oleic and linoleic acids on the other. We note between 6 and 12 months of storage at 4°C a decrease in the percentage of unsaturated acids (76% to 63%) and an increase in the percentage of saturated acids (24% to 36%). The results show that the oleic acid maintained the same percentage (35%) as it is not easily oxidized whereas, for the linoleic acid, we observe a decrease in percentage from 22.5% to 18.5% (slow autoxidation at 4°C). We also used this NMR method for the analysis of the argan pulp fatty part. The GC analysis shows that it contains very few unsaturated fatty acids and that the main fatty acids are myristic (C14:0) and palmitic (C16:0) acids. The proton NMR with Pr(tpip)3 allowed us to confirm these results. This method that does not require derivation has proven to be interesting, simple and efficient.

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“…Nuclear magnetic resonance (NMR) is of particular interest because of its broad range of applications that makes it such a valuable tool for scientists in many disciplines. Today, this is especially the case in the life sciences [1,2] and progress in the emerging field of biomedical imaging is therefore also linked to new NMRbased detection schemes.…”

Section: Introductionmentioning

confidence: 99%

Xenon for NMR biosensing – Inert but alert

2013

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NMR studies with hyperpolarized xenon as functionalized sensor or contrast agent recently made notable progress in developing a new approach for detecting molecular markers and parameters of biomedical interest. Combining spin polarization enhancement with novel indirect detection schemes easily enables a 10⁷-fold signal gain, thus having promising potential to solve the NMR sensitivity problem in many applications. Though an inert element, ¹²⁹Xe has exquisite NMR properties to sense molecular environments. This review summarizes recent developments in the production of hyperpolarized xenon and the design and detection schemes of xenon biosensors.

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Forty years of Progress in Nuclear Magnetic Resonance Spectroscopy

Cited by 37 publications

References 188 publications

Two-dimensional infrared spectroscopy: an emerging analytical tool?

Two-dimensional infrared spectroscopy: an emerging analytical tool?

The use of tris (tetraphenylimidodiphosphinate) of praseodymium chemical shift reagent in proton NMR for the evaluation of the argan oil fatty acids autoxidation and the analysis of the argan pulp fatty acids

Xenon for NMR biosensing – Inert but alert

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