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Published on: September 1, 2020
Prevention of spinning induced sample deterioration during long time solid state NMR experiments of quadrupolar spin
1Department of Chemistry and Center for Nanoscience and Nanotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan, Republic of China.
Abstract:
A simple solution is proposed to prevent a solid state polycrystalline sample from deterioration during long time high speed spinning experiments in solid state NMR. It is found that if a certain percentage ( approximately 40% volume) of polyethylene glycol (PEG, (HO-CH(2)-(CH(2)-O-CH(2)-)(n)-CH(2)-OH)(n)) is mixed with the sample that are subject to deterioration, the quality of the sample can be maintained for a long time under high speed spinning for a few days or longer, sufficient for multi-dimensional and/or low-sensitivity experiments. Both 1D and 2D experimental results are shown to support this idea.
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