Strategies for Structural and Quantitative Analysis of Heterogeneous Block Copolymers by 13C MAS NMR Spectroscopy

1995 ◽  
Vol 28 (6) ◽  
pp. 2009-2015 ◽  
Author(s):  
Niels Chr. Nielsen ◽  
Ryan Sangill ◽  
Henrik Bildsoe ◽  
Hans J. Jakobsen
Keyword(s):  
Quantitative Analysis ◽  
Nmr Spectroscopy ◽  
Block Copolymers ◽  
Mas Nmr ◽  
13C Mas Nmr

scholarly journals Probing Pore Size and Connectivity in Porous Silicas Using 13C MAS NMR Spectroscopy of Supercritical Methane

2020 ◽  
Vol 124 (21) ◽  
pp. 11536-11543
Author(s):  
Geoffrey M. Bowers ◽  
Eric D. Walter ◽  
Sarah D. Burton ◽  
Kaitlynn C. Schwarz ◽  
David W. Hoyt ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Pore Size ◽  
Mas Nmr ◽  
13C Mas Nmr

Triple Resonance Cross-Polarization for More Sensitive 13C MAS NMR Spectroscopy of Deuterated Proteins

ChemPhysChem ◽  
2011 ◽  
Vol 12 (11) ◽  
pp. 2092-2096 ◽  
Author(s):  
Ümit Akbey ◽  
Francesca Camponeschi ◽  
Barth-Jan van Rossum ◽  
Hartmut Oschkinat
Keyword(s):  
Nmr Spectroscopy ◽  
Mas Nmr ◽  
Triple Resonance ◽  
Cross Polarization ◽  
13C Mas Nmr ◽  
Deuterated Proteins

High-resolution J-coupled 13C MAS NMR spectroscopy of lipid membranes

2009 ◽  
Vol 161 (2) ◽  
pp. 77-85 ◽  
Author(s):  
Filip Ciesielski ◽  
David C. Griffin ◽  
Michael Rittig ◽  
Boyan B. Bonev
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Lipid Membranes ◽  
Mas Nmr ◽  
13C Mas Nmr

scholarly journals Quality of spelt pasta enriched with eggs and identification of eggs using 13C MAS NMR spectroscopy

2015 ◽  
Vol 69 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Jelena Filipovic ◽  
Zoran Miladinovic ◽  
Lato Pezo ◽  
Nada Filipovic ◽  
Vladimir Filipovic ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Mas Nmr ◽  
Simultaneous Increase ◽  
Positive Contribution ◽  
13C Mas Nmr ◽  
Score Analysis ◽  
Coefficients Of Variation ◽  
Pertinent Data ◽  
Quantity Control ◽  
Post Hoc

This paper deals with the characteristics of spelt pasta enriched with eggs. Eggs were added to spelt farina in the quantity of 0, 124 or 248 g/kg (equivalent to 0, 3 or 6 eggs, respectively). Post-hoc Tukey?s HSD test at 95% confidence limit showed significant differences between various samples. Relatively low coefficients of variation have been obtained for each applied assay (1.25-12.42%), which confirmed the high accuracy measurements and statistically significant results. Standard score analysis is applied for accessing the contribution of eggs content to spelt pasta quality. Maximum scores regarding quality (0.89) and chemical characteristics (0.70), have been obtained for 6 eggs spelt pasta formulation. It is also shown that the presence of eggs in pasta can be clearly confirmed by 13C MAS NMR spectroscopy. Simultaneous increase in area of peak positioned at 29.5 and 176 ppm is directly associated with the increase in the content of added eggs in the corresponding samples. Pertinent data point at positive contribution of eggs to the spelt pasta and also that NMR spectrum can be used in the egg quantity control.

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