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Quo Vadis qNMR?
Diehl B, Holzgrabe U, Monakhova Y, Schönberger T. Diehl B, et al. J Pharm Biomed Anal. 2020 Jan 5;177:112847. doi: 10.1016/j.jpba.2019.112847. Epub 2019 Aug 30. J Pharm Biomed Anal. 2020. PMID: 31505431 Review.
Mixtures can be characterized much better by applying various chemometric methods and separating the signals of mixture components can be achieved by DOSY experiments. All these methods contribute to the platform of qNMR methods and extend the possibilities of NMR for quan …
Mixtures can be characterized much better by applying various chemometric methods and separating the signals of mixture components can be ac …
The application of qNMR for the determination of rosuvastatin in tablet form.
Dİkmen G, Uslu O. Dİkmen G, et al. Turk J Chem. 2021 Feb 17;45(1):132-142. doi: 10.3906/kim-2007-7. eCollection 2021. Turk J Chem. 2021. PMID: 33679159 Free PMC article.
Moreover, LOD and LOQ values using qNMR method were observed as 0.25 mg/mL and 0.80 mg/mL, respectively. ...It was found that qNMR method is simple, efficient, reliable, and accurate method. ...
Moreover, LOD and LOQ values using qNMR method were observed as 0.25 mg/mL and 0.80 mg/mL, respectively. ...It was found that qNMR …
The qNMR Summit 5.0: Proceedings and Status of qNMR Technology.
Giancaspro G, Adams KM, Bhavaraju S, Corbett C, Diehl B, Freudenberger JC, Fritsch K, Krishnamurthy K, Laatikainen P, Martos G, Miura T, Nam JW, Niemitz M, Nishizaki Y, Sugimoto N, Obkircher M, Phansalkar R, Ray GJ, Saito T, Sørensen D, Urbas A, Napolitano JG, Tadjimukhamedov F, Bzhelyansky A, Liu Y, Pauli GF. Giancaspro G, et al. Anal Chem. 2021 Sep 14;93(36):12162-12169. doi: 10.1021/acs.analchem.1c02056. Epub 2021 Sep 2. Anal Chem. 2021. PMID: 34473490 Free article. Review.
The goal of the qNMR Summit is to take stock of the status quo and the recent developments in qNMR research and applications in a timely and accurate manner. It provides a platform for both advanced and novice qNMR practitioners to receive a well-rounded upda …
The goal of the qNMR Summit is to take stock of the status quo and the recent developments in qNMR research and applications i …
Quantitative NMR (qNMR) for pharmaceutical analysis: The pioneering work of George Hanna at the US FDA.
Jaki BU, Bzhelyansky A, Pauli GF. Jaki BU, et al. Magn Reson Chem. 2021 Jan;59(1):7-15. doi: 10.1002/mrc.5099. Epub 2020 Oct 13. Magn Reson Chem. 2021. PMID: 32910504 Review.
In the last two decades, quantitative NMR (qNMR) has become increasingly important for the analysis of pharmaceuticals, chemicals, and natural products including dietary supplements. ...His work has the potential to inspire new developments in qNMR applied to small …
In the last two decades, quantitative NMR (qNMR) has become increasingly important for the analysis of pharmaceuticals, chemicals, an …
Potential of 2D qNMR spectroscopy for distinguishing chicken breeds based on the metabolic differences.
Kim HC, Ko YJ, Jo C. Kim HC, et al. Food Chem. 2021 Apr 16;342:128316. doi: 10.1016/j.foodchem.2020.128316. Epub 2020 Oct 14. Food Chem. 2021. PMID: 33092924
Two-dimensional quantitative NMR spectroscopy (2D qNMR) was set up and multivariate analyses were performed on metabolites obtained from breast meat extracts of broilers and four native chicken (KNC) strains. ...Also, 2D qNMR may provide fast metabolomics informatio …
Two-dimensional quantitative NMR spectroscopy (2D qNMR) was set up and multivariate analyses were performed on metabolites obtained f …
Lithium-7 qNMR as a method to quantify lithium content in brines using benchtop NMR.
Araneda JF , Hui P , Leskowitz GM , Riegel SD , Mercado R , Green C . Araneda JF , et al. Analyst. 2021 Feb 7;146(3):882-888. doi: 10.1039/d0an02088e. Epub 2020 Nov 25. Analyst. 2021. PMID: 33236728
A novel (7)Li quantitative NMR (qNMR) method to analyze lithium was developed to determine the lithium content in real brine samples using benchtop NMR instruments. ...
A novel (7)Li quantitative NMR (qNMR) method to analyze lithium was developed to determine the lithium content in real brine samples …
qNMR quantification of phenolic compounds in dry extract of Myrcia multiflora leaves and its antioxidant, anti-AGE, and enzymatic inhibition activities.
Oliveira ESC, Pontes FLD, Acho LDR, do Rosário AS, da Silva BJP, de A Bezerra J, Campos FR, Lima ES, Machado MB. Oliveira ESC, et al. J Pharm Biomed Anal. 2021 Jul 15;201:114109. doi: 10.1016/j.jpba.2021.114109. Epub 2021 Apr 28. J Pharm Biomed Anal. 2021. PMID: 33957365
Among these compounds, chlorogenic acid (1), 4-O-caffeoylquinic acid (2), corilagin (3), chebulagic acid (4), pedunculagin (5), quercetin-3-O-beta-2"-galloylglucoside (7), and kaempferol-3-O-rhamnoside (12) are described for the first time in this matrix. Furthermore, six compoun …
Among these compounds, chlorogenic acid (1), 4-O-caffeoylquinic acid (2), corilagin (3), chebulagic acid (4), pedunculagin (5), quercetin-3- …
A Novel qNMR Application for the Quantification of Vegetable Oils Used as Adulterants in Essential Oils.
Truzzi E, Marchetti L, Benvenuti S, Righi V, Rossi MC, Gallo V, Bertelli D. Truzzi E, et al. Molecules. 2021 Sep 7;26(18):5439. doi: 10.3390/molecules26185439. Molecules. 2021. PMID: 34576909 Free PMC article.
Essential oils (EOs) are more and more frequently adulterated due to their wide usage and large profit, for this reason accurate and precise authentication techniques are essential. This work aims at the application of qNMR as a versatile tool for the quantification of veg …
Essential oils (EOs) are more and more frequently adulterated due to their wide usage and large profit, for this reason accurate and precise …
Quantitative Analysis of Flavonoids in Glycyrrhiza uralensis Fisch by 1H-qNMR.
Yu P, Li Q, Feng Y, Chen Y, Ma S, Ding X. Yu P, et al. J Anal Methods Chem. 2021 Jan 18;2021:6655572. doi: 10.1155/2021/6655572. eCollection 2021. J Anal Methods Chem. 2021. PMID: 33532111 Free PMC article.
OBJECTIVE: To establish a method for simultaneous determination of liquiritin, liquiritigenin, and isoliquiritinin glycyrrhizin using hydrogen nuclear magnetic resonance quantitative technology ((1)H-qNMR). Methodology. Deuterated dimethyl sulfoxide was used as the solvent …
OBJECTIVE: To establish a method for simultaneous determination of liquiritin, liquiritigenin, and isoliquiritinin glycyrrhizin using hydrog …
Novel approach of qNMR workflow by standardization using 2H integral: Application to any intrinsic calibration standard.
Monakhova YB, Diehl BWK. Monakhova YB, et al. Talanta. 2021 Jan 15;222:121504. doi: 10.1016/j.talanta.2020.121504. Epub 2020 Aug 7. Talanta. 2021. PMID: 33167217
Quantitative nuclear magnetic resonance (qNMR) is routinely performed by the internal or external standardization. ...
Quantitative nuclear magnetic resonance (qNMR) is routinely performed by the internal or external standardization. ...
409 results