Results 21 to 30 of about 1,303,827 (253)
Moisture sorption by dairy powders studied by low-field NMR
, 2021 The influence of moisture sorption on spin-spin (T2) relaxation times for skim milk powder (SMP), milk protein concentrates (MPC50 and MPC80) and amorphous lactose was studied by low-field nuclear magnetic resonance (NMR). For amorphous lactose and MPC80,
T. Vasiljevic, A. Toebes, T. Huppertz
semanticscholar +1 more source
Solid-state NMR signals at zero-to-ultra-low-field
Journal of Magnetic Resonance Open, 2022 Zero-to-ultra-low-field nuclear magnetic resonance (ZULF NMR) is fast emerging as a viable spectroscopic approach to study samples under conditions dominated by internal spin interactions.
K.K. George Kurian +2 more
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Determination of herb authenticity by low-field NMR
Food Chemistry, 2013 The safe use of herbal medicines requires prior authentication of the raw materials used to make them. This is an important step, since the ingestion of herbal preparations or extracts can cause serious health problems. Among the different analytical techniques, nuclear magnetic resonance (NMR) spectroscopy has the advantage of being non-invasive and ...
Preto, M.S.M. +3 more
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Inline NMR via a Dedicated V-Shaped Sensor
Sensors, 2023 Process monitoring and control require dedicated and reliable measures which reflect the status of the process under investigation. Although nuclear magnetic resonance is known to be a versatile analytical technique, it is only seldomly found in process ...
Eric Schmid +4 more
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Selective drug trace detection with low-field NMR [PDF]
The Analyst, 2011 Advances with para-hydrogen induced polarization open up new fields of applications for portable low-field NMR. Here we report the possibility of tracing drugs down to the micromolar regime. We could selectively polarize nicotine quantities similar to those found in one cigarette. Also less than 1 mg of harmine, a drug used for treatment of Parkinson's
Glöggler, S. +5 more
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On-Site Measurement of Fat and Protein Contents in Milk Using Mobile NMR Technology
Molecules, 2022 Robust and easy-to-use NMR sensor technology is proposed for accurate, on-site determination of fat and protein contents in milk. The two parameters are determined using fast consecutive 1H and 35Cl low-field NMR experiments on milk samples upon the 1:1 ...
Morten K. Sørensen +4 more
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Journal of Magnetic Resonance Open, 2023 The receptivity of NMR spectroscopy is low when compared to other techniques. Historically, increasing the strength of the static magnetic field has been the major approach to increase NMR sensitivity.
Tiago Bueno Moraes +5 more
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Guar gum/borax hydrogel: Rheological, low field NMR and release characterizations
eXPRESS Polymer Letters, 2013 Guar gum (GG) and Guar gum/borax (GGb) hydrogels are studied by means of rheology, Low Field Nuclear Magnetic Resonance (LF NMR) and model drug release tests. These three approaches are used to estimate the mesh size (ζ) of the polymeric network.
M. Grassi +8 more
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Magnetic Resonance in Chemistry, 2019 Abstract. The subject of this thesis is NMR in low magnetic field. Traditionally NMR instruments utilize a superconducting high field magnet, but recently, compact instruments are getting more common with the use of lower magnetic fields. In this thesis, the basic theory of NMR is explained and the instrumentation and different ways of producing ...
openaire +4 more sources
Wavelet Transform-Based Signal Denoising in Low-Field NMR
Chinese Journal of Magnetic Resonance, 2018 Low-field NMR often uses permanent magnet. The signals obtained contain high level of white Gaussian noises, and have low signal-to-noise ratio (SNR). In recent years, many denoising methods have been proposed for low-field NMR measurements.
CHANG Xiao, SU Guan-qun, NIE Sheng-dong
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