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posted Dec 27 '09 at 10:17

Evgeny%20Fadeev's gravatar image

Evgeny Fadeev
5771

Choice of method to calibrate decoupling pulse

Book by Timothy Claridge "High-Resolution NMR Techniques in Organic Chemistry" recommends calibrating homonuclear decoupling pulse power using Bloch-Siegert shift. It's somewhere in the "calibrations" section of the book.

Is there a particular reason that it would be inaccurate to set decoupler directly on resonance and calibrate width of 90 degree pulse by finding 360 pulse zero crossing?

Thanks.

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posted Dec 27 '09 at 14:39

Evgeny%20Fadeev's gravatar image

Evgeny Fadeev
5771

Choice of method to calibrate decoupling pulse

Book by Timothy Claridge "High-Resolution NMR Techniques in Organic Chemistry" recommends calibrating homonuclear decoupling pulse power using Bloch-Siegert shift. It's somewhere in the "calibrations" section of the book.

Is there a particular reason that it would be inaccurate to set decoupler directly on resonance and calibrate width of low power 90 degree pulse by finding 360 pulse zero crossing?

Thanks.

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