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Aligned deuterochloroform in cross-linked polystyrene as a new sample for adjusting the magic angle in HR-MAS


Stefan Berger, Institute of Analytical Chemistry, University of Leipzig, Johannisallee 29. 3, D-04103 Leipzig, Germany. E-mail:


A new and easily usable sample for adjusting the magic angle in a high resolution magic angle spinning (HR-MAS) probe head is a swollen polymer stick in CDCl3. The deuterium resonance shows a quadrupolar splitting if the rotor assembly is not at the magic angle, but a sharp singlet if the magic angle is correctly adjusted. Copyright © 2012 John Wiley & Sons, Ltd.