Enhanced Sensitivity in RIACT/MQ-MAS NMR Experiments Using Rotor Assisted Population Transfer

Enhanced Sensitivity in RIACT/MQ-MAS NMR Experiments Using Rotor Assisted Population Transfer

The rotor assisted population transfer (RAPT) sequence is used to enhance the sensitivity of the RIACT(II) experiment for spin-3/2 quadrupolar nuclei. A detailed theoretical analysis of the polarizations that contribute to different types of MQ-MAS experiments is provided. In particular, two polariz...

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Veröffentlicht in:Journal of magnetic resonance (1997) 2001-05, Vol.150 (1), p.71-80
Hauptverfasser: Kwak, H.-T., Prasad, S., Yao, Z., Grandinetti, P.J., Sachleben, J.R., Emsley, L.
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container_issue 1
container_start_page 71
container_title Journal of magnetic resonance (1997)
container_volume 150
creator Kwak, H.-T.
Prasad, S.
Yao, Z.
Grandinetti, P.J.
Sachleben, J.R.
Emsley, L.
description The rotor assisted population transfer (RAPT) sequence is used to enhance the sensitivity of the RIACT(II) experiment for spin-3/2 quadrupolar nuclei. A detailed theoretical analysis of the polarizations that contribute to different types of MQ-MAS experiments is provided. In particular, two polarization pathways are distinguished for the creation of triple-quantum coherence. The existence of these pathways is experimentally demonstrated by comparing the sensitivities of different sequences with and without RAPT preparation.
doi_str_mv 10.1006/jmre.2001.2313
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title Enhanced Sensitivity in RIACT/MQ-MAS NMR Experiments Using Rotor Assisted Population Transfer
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