1H NMR alone has been used to identify and quantify the four most abundant components - propylene glycol, glycerol, water and nicotine - in e-cigarette liquids which can influence potential toxic and carcinogenic exposures.
Dynamics of 4-oxo-TEMPO-d16-(15)N nitroxide-propylene glycol system studied by ESR and ESE in liquid and glassy state in temperature range 10-295K
From The DNP-NMR Blog:
Dynamics of 4-oxo-TEMPO-d16-(15)N nitroxide-propylene glycol system studied by ESR and ESE in liquid and glassy state in temperature range 10-295K
Goslar, J., S.K. Hoffmann, and S. Lijewski, Dynamics of 4-oxo-TEMPO-d16-(15)N nitroxide-propylene glycol system studied by ESR and ESE in liquid and glassy state in temperature range 10-295K. J Magn Reson, 2016. 269: p. 162-75.
http://www.ncbi.nlm.nih.gov/pubmed/27323281
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News from NMR blogs
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08-24-2016 04:39 PM
Journal Highlight: Quantitative online NMR spectroscopy in a nutshell
Journal Highlight: Quantitative online NMR spectroscopy in a nutshell
http://www.spectroscopynow.com/common/images/thumbnails/155a67a8bff.jpgThis paper compiles the most important aspects of quantitative process NMR spectroscopy in complex multicomponent mixtures and provides examples.
Read the rest at Spectroscopynow.com
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General
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07-04-2016 10:42 AM
Journal Highlight: Authentication of the origin of sucrose-based sugar products using quantitative natural abundance 13C NMR
Journal Highlight: Authentication of the origin of sucrose-based sugar products using quantitative natural abundance 13C NMR
http://www.spectroscopynow.com/common/images/thumbnails/154eca4d25d.jpgA direct 13C nuclear magnetic resonance (NMR) method can differentiate between sucrose-based sugar products produced from sugar beet (C3 plant) and sugar cane (C4 plant), providing an alternative to isotope ratio MS.
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General
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05-30-2016 01:15 PM
[NMR paper] Quantitative Detection of Pegylated Biomacromolecules in Biological Fluids by NMR.
Quantitative Detection of Pegylated Biomacromolecules in Biological Fluids by NMR.
Quantitative Detection of Pegylated Biomacromolecules in Biological Fluids by NMR.
Anal Chem. 2016 Feb 29;
Authors: Alvares RD, Hasabnis A, Prosser RS, Macdonald PM
Abstract
The accumulation, bio-distribution and clearance profiles of therapeutic agents are key factors relevant to their efficacy. Determining these properties constitutes an ongoing experimental challenge. Many such therapeutics, including small molecules, peptides, proteins, tissue...
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Journal club
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03-02-2016 07:20 PM
Journal Highlight: Water proton NMR for in situ detection of insulin aggregates
Journal Highlight: Water proton NMR for in situ detection of insulin aggregates
http://www.spectroscopynow.com/common/images/thumbnails/151f38394bb.jpgHuman insulin preparations were used to demonstrate that the transverse relaxation rate of water protons can serve as a sensitive and reliable indicator to detect and quantify both visible and sub-visible protein aggregates.
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General
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01-04-2016 07:49 PM
Journal Highlight: Quantitative 2D liquid-state NMR
Journal Highlight: Quantitative 2D liquid-state NMR
http://www.spectroscopynow.com/common/images/thumbnails/1465cafc4c8.jpgThis review aims at presenting recent efforts to reach a high trueness and precision in quantitative measurements of liquids by 2D NMR.
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General
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06-02-2014 10:02 PM
Journal Highlight: Determination of free fatty acids in edible oils by 1H NMR spectroscopy
Journal Highlight: Determination of free fatty acids in edible oils by 1H NMR spectroscopy
http://www.spectroscopynow.com/common/images/thumbnails/13c10b7ddda.jpgA novel proton NMR assay for the determination of free fatty acids in edible oils is a suitable alternative to the acid value method.
Source: Spectroscopynow.com
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General
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02-03-2013 08:49 AM
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
Journal Highlight: Determination of nicotine, glycerol, propylene glycol and water in electronic cigarette fluids using quantitative 1H NMR
1H NMR alone has been used to identify and quantify the four most abundant components - propylene glycol, glycerol, water and nicotine - in e-cigarette liquids which can influence potential toxic and carcinogenic exposures.
Linear Mode
