1H and 13C NMR spectroscopy coupled with chemometric analysis (PCA and PLS-DA) and antioxidant assays were used to study 25 samples of Polish herbhoneys and honeys.
Journal Highlight: Investigation of the chemomarkers correlated with flower colour in different organs of Catharanthus roseus using NMR-based metabolomics
Journal Highlight: Investigation of the chemomarkers correlated with flower colour in different organs of Catharanthus roseus using NMR-based metabolomics
http://www.spectroscopynow.com/common/images/thumbnails/14358e552d8.jpgThe metabolic profile of leaves, stems, roots and flowers of Catharanthus roseus and the possible correlation with four flower colours (orange, pink, purple and red) was studied by 1H-NMR spectroscopy.
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01-06-2014 08:50 PM
Journal Highlight: Automatic assignment of 1H-NMR spectra of small molecules
Journal Highlight: Automatic assignment of 1H-NMR spectra of small molecules
http://www.spectroscopynow.com/common/images/thumbnails/1426b18dc06.jpgA novel data-evaluation procedure for the automatic atom to peak or multiplet assignment of 1H-NMR spectra of small molecules has been developed using a fast and robust expert system.
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11-18-2013 10:42 PM
Journal Highlight: Hydrothermal upgrading of algae paste: Application of 31P-NMR
Journal Highlight: Hydrothermal upgrading of algae paste: Application of 31P-NMR
http://www.spectroscopynow.com/common/images/thumbnails/1421ee32c5b.jpgThe fate of derivatized (2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane) hydroxyl groups during hydrothermal upgrading of algae was studied by 31P NMR to understand the transformation of algal biomass into biocrude.
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11-04-2013 06:07 PM
Journal Highlight: 3He NMR: from free gas to its encapsulation in fullerene
Journal Highlight: 3He NMR: from free gas to its encapsulation in fullerene
http://www.spectroscopynow.com/common/images/thumbnails/1403959935b.jpgThe 3He nuclear magnetic shieldings were calculated for single helium atom, its dimer, simple models of fullerene cages (He@Cn), and single wall carbon nanotubes.
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08-05-2013 09:06 AM
Journal Highlight: Assessment of higher order structure comparability in ... - spectroscopyNOW.com
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Journal Highlight: Assessment of higher order structure comparability in ...
spectroscopyNOW.com
Abstract: In this work, we applied nuclear magnetic resonance (NMR) spectroscopy to rapidly assess higher order structure (HOS) comparability in protein samples. Using a variation of the NMR fingerprinting approach described by Panjwani et al.
Journal Highlight: Assessment of higher order structure comparability in ... - spectroscopyNOW.com
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06-03-2013 04:21 PM
Journal Highlight: Coupling of a high-resolution monoamine oxidase-A inhibitor assay and HPLC–SPE–NMR for advanced bioactivity profiling of plant extracts
Journal Highlight: Coupling of a high-resolution monoamine oxidase-A inhibitor assay and HPLC–SPE–NMR for advanced bioactivity profiling of plant extracts
http://www.spectroscopynow.com/common/images/thumbnails/13d26a3428e.jpgA photometric microplate-based high-resolution monoamine oxidase A inhibitor assay was coupled with an HPLC–SPE–tube transfer NMR system for the bioactivity profiling of plant extracts in the search for new antidepressants.
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03-04-2013 03:07 PM
Journal Highlight: How to tickle spins with a Fourier Transform NMR spectrometer
Journal Highlight: How to tickle spins with a Fourier Transform NMR spectrometer
http://www.spectroscopynow.com/common/images/thumbnails/13c920587a1.jpgSpin tickling can readily be achieved in homonuclear systems with Fourier transform NMR spectrometers by applying short pulses in the intervals between the sampling points.
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02-04-2013 08:00 PM
Journal Highlight: Quantitative NMR: An applicable method for quantitative analysis of medicinal plant extracts and herbal products
Journal Highlight: Quantitative NMR: An applicable method for quantitative analysis of medicinal plant extracts and herbal products
http://www.spectroscopynow.com/common/images/thumbnails/13abcca009b.jpgA quantitative NMR method has been reported for quantitative analysis of three medicinal plant extracts and their herbal products without the need of authentic standards.
Source: Spectroscopynow.com