Quantification of Ammonium Phosphatide Emulsifiers in Chocolate Using <sup>31</sup>P NMR Spectroscopy

Malmos, Kirsten Gade; Gouilleux, Boris; Sønderskov, Patrick; Andersen, T.; Frambøl, Jens Viggo; Vosegaard, Thomas

doi:10.1021/acs.jafc.8b04379

Cited by 4 publications

(1 citation statement)

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“…Reaction monitoring applications on fluorinated compounds have been largely reported with benchtop NMR [26,27]. Depending on the hardware, a second probe can detect a supplementary nucleus such as 13 C or 31 P [28][29][30]. In addition, the first benchtop spectrometers with a broadband probe have been recently made available, offering an additional flexibility on the observed nucleus and broadening the scope of applications, particularly in organic chemistry [19].…”

Section: Probes and Accessoriesmentioning

confidence: 99%

Recent advances in benchtop NMR spectroscopy and its applications

Castaing‐Cordier

Bouillaud

Farjon

et al. 2021

Annual Reports on NMR Spectroscopy

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Benchtop NMR spectroscopy has known a major growth over the last decade, thanks to the design of permanent, compact magnets in the 1-2 T range, that provide remarkable performance in terms of resolution and sensitivity. Although resulting spectra are more limited than their high-field counterparts, the achievable structural and quantitative information can be maximized by a clever use of pulse sequences -in particular those involving gradient pulses-and by advanced data processing algorithms. In this chapter, we describe the main characteristics of benchtop NMR spectroscopy in 2020, both in terms of hardware and typical performance. We highlight the most recent methodological improvements in the field, in terms of pulse sequences, hyperpolarization and data processing, which have significantly improved the resolution and sensitivity of benchtop NMR spectrometers. Finally, we discuss major applications of benchtop NMR spectroscopy, for reaction and process monitoring, but also for quality control and profiling. The number of papers in this field in the last few years undoubtedly highlights the major role that benchtop NMR has to play for applications in areas such as food and pharmaceutical industry, flow chemistry, and profiling of complex samples.

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Section: Probes and Accessoriesmentioning

confidence: 99%

Recent advances in benchtop NMR spectroscopy and its applications

Castaing‐Cordier

Bouillaud

Farjon

et al. 2021

Annual Reports on NMR Spectroscopy

View full text Add to dashboard Cite

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Chemometrics Applied to Nuclear Magnetic Resonance Analysis

Beavis

Rusilowicz

Donarski

et al. 2019

Encyclopedia of Analytical Chemistry

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Nuclear magnetic resonance (NMR) spectroscopy provides information about the physical and chemical properties of atoms within a sample and has become an essential tool in metabolomics. Although less sensitive than mass spectrometry, NMR spectroscopy is highly reproducible and gives wider coverage in comparison to other techniques used for the analysis of complex mixtures. Recent advances in technology, advances in methodology, and increased computer power have increased the need to develop mathematical and statistical methods to analyze and interpret the complex datasets acquired. This has resulted in developments in the field of chemical informatics known as chemometrics . In contrast to targeted analyses, chemometric approaches do not initially attempt to identify particular metabolites. Instead, statistical techniques and pattern recognition methods are used to identify spectral features that show consistent trends or provide discrimination between classes. These features can provide a fingerprint for a metabolic state to be used, for example, for disease diagnostics, and individual features of interest can then be related to specific compounds and metabolic pathways using database searches. NMR‐based chemometric methods are now used in a wide range of applications including clinical diagnostics, food science and traceability, process control, monitoring genetic modification, and predicting the side effects of pharmaceuticals and their environmental effects.

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