Results 171 to 180 of about 11,846 (190)

Detection of honey adulteration using benchtop ¹H NMR spectroscopy

Analytical Methods, 2023
Benchtop NMR analysis combined with model-based fitting protocols can detect commercial honey adulteration down to 5 wt%.
Yuki Rhee, Ella R. Shilliday, Yevgen Matviychuk, Thien Nguyen, Neil Robinson, Daniel J. Holland, Paul R. J. Connolly, Michael L. Johns   +7 more
openaire   +2 more sources

Bayesian approach for automated quantitative analysis of benchtop NMR data

Journal of Magnetic Resonance, 2020
Low-cost, user-friendly benchtop NMR instruments are often touted as a "one-click" solution for data acquisition, however insufficient peak dispersion in their spectra often reduces the accuracy of quantification and requires user expertise with sophisticated processing tools.
Matviychuk, Yevgen, Steimers E, von Harbou E, Holland, Daniel   +3 more
openaire   +3 more sources

Design of a benchtop NMR/MRI system

2022
Nuclear Magnetic Resonance (NMR) provides us with ways to look at objects in a very intricate and detailed manner. A major advantage of these systems is their non-destructive nature and them not requiring any contact with the samples. Current systems are quite often exorbitant and complex in nature, making them unfeasible for teaching and research ...
openaire   +1 more source

Quantitative analysis using external standards with a benchtop NMR spectrometer

Journal of Magnetic Resonance, 2020
This paper investigates the use of benchtop NMR spectrometers for quantitative analysis with external standards. Specifically, it focuses on the measurement of aqueous samples with analyte concentrations ranging from 30 mM to 1.7 M and electrical conductivity of up to 84mScm-1 using a 43 MHz instrument.
Lee Y, Matviychuk, Yevgen, Holland, Daniel   +2 more
openaire   +3 more sources

Applications of benchtop NMR in the organic chemistry instructional laboratory

Magnetic Resonance in Chemistry, 2020
Abstract The instructional organic chemistry laboratory has been substantially improved through the implementation of benchtop NMR analysis. When used in conjunction with unknown reaction components in multi‐outcome experiments, NMR analysis transforms the laboratory exercise into an investigative inquiry wherein students elucidate ...
Richard W. Morrison, Mengqi Zhang
openaire   +2 more sources

A field-invariant method for quantitative analysis with benchtop NMR

Journal of Magnetic Resonance, 2019
Recently developed benchtop instruments have the potential of bringing the benefits of NMR spectroscopy to the wide variety of industrial applications. Unfortunately, their low spectral resolution poses significant challenges for traditional quantification approach. Here we present a novel model-based method designed to overcome these challenges.
Matviychuk, Yevgen, Yeo, J, Holland, Daniel   +2 more
openaire   +3 more sources

Benchtop NMR for lab-on-a-chip

ISMRM Annual Meeting
A benchtop NMR spectrometer has been designed and optimized to monitor real-time metabolism of 3D tissue engineered on microfluidic platforms using hyperpolarization by dynamic nuclear polarisation. We show the design process, which included the modification of a commercial benchtop NMR spectrometer, the design and fabrication of a microfluidic ...
Marc Azagra, Alejandro Portela, Hetal Patel, Dian Weerakonda, Jose Yeste, Alba Herrero-Gómez, Matthew Fallon, Megdouda Benamara, Marc Dubois, Tryfon Antonakakis, Javier Ramon, Irene Marco-Rius   +11 more
openaire   +1 more source

Review for "Benchtop NMR in Forensic Chemistry"

2021
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Benchtop 129Xe optical polarizer for NMR applications

ODS 2022: Industrial Optical Devices and Systems, 2022
Daba Radnatarov, Sergey M. Kobtsev, Valerii Andryushkov   +2 more
openaire   +1 more source

Benchtop‐NMR‐Spektrometer als HPLC‐Detektor

Lebensmittelchemie, 2022
openaire   +1 more source