Analytical Solid-State NMR Applications
Analytical Solid-state NMR analyses cover a wide range of applications that cannot be addressed by liquid-state experiments. In solid-state NMR samples are place in 7mm diameter spinning rotors and spun at high speeds (3-14 kHz) in order to allow acquisition of NMR spectra with sufficient resolution to allow chemical determinations to be made. An excellent overview of solid-state NMR is presented by Prof. Robert Schurko.
Our solid-state NMR equipment comprises of a Varian UnityPlus-200 spectrometer equipped for liquids (broad band probes) and solids (Doty Scientific 7mm supersonic probe). In particular this configuration is advantageous for performing solid-state 13C NMR analysis where the chemical shift anisotropy at 4.7 Tesla is small enough to be effectively averaged and magic angle spinning sidebands pushed outside the 13C chemical shift range so that they do allow proper quantitation of aromatic and aliphatic carbons.
In the following pages we will give several examples of applications that have been undertaken by PNA. We have a large amount of experience in the analytical solid-state analysis NMR area. Some of the topics below cannot be exemplified due to restrictions placed on the analyses. Where this is the case I have included a link to a document that adequately demonstrates the use of NMR in that area.
Silicon-29 NMR of:
Carbon-13 NMR of:
- Combustion Chamber Deposits – Paper Given at SAE in 1992
- Coals, Coke, Soils, Kerogens, Asphaltenes – More
- Carbon Based Catalysts
- Diesel Engine Soot
- Gaskets and Seal Materials (Silicones, NBR, HNBR)
- Polymers (EPDM, Terpolymers, Rubbers, Nylons, Polyethers, Polyurethanes, PVC,)
- Sugars, Polysaccharides, and Polypeptides
- Catalyst Coking Studies
- Medicine Tablet Dosing Studies
- Insoluble Materials from Various Sources (Compositional Studies)
- Natural Organic Matter (Soil, Humus, Kerogen)
- Solid-State 13C NMR of Kitchen Herbs
- 2H NMR of Wax Crystallization Dynamics in Lubricant Base Oils
- 27Al Studies of Aluminas, Surface-Modified Aluminas, Aluminosilicates and Clays
- 11B, 27Al, and 29Si Studies of Boron Substituted Zeolites and Aluminosilicates
- Solid State Analysis NMR of Silicates and Oxides – A Review by Stebbins
- Zeolite Synthesis
- Herbal Supplements – Solid-State 13C NMR
Chemical Shift Tables
Process NMR Associates Recent Projects
Process NMR Associates – NMR Analysis Blog
We encourage you to discuss your potential Analytical Solid-State Analysis NMR applications with us.
Contact: John Edwards