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3.8.5
Setting of CM Decoupling Conditions
To perform CM (Cosine Modulation) decoupling, adjust the pulse width of irr_width_cm
and the phase-shift value of irr_phs_tppm.
1.
Set the standard sample glycine.
2.
Set irr_noise to CM.
3.
Perform an array measurement for irr_ width_cm and irr_ phs_tppm.
4.
Click the Submit button.
The pulses occur, and the measurement starts.
If the measurement ends, the nD Processor window automatically opens.
5.
Perform data processing.
6.
Take a slice of the C
7.
From the 2D data of the YZ plane, obtain the values of irr_width_cm and
irr_phs_tppm that give the strongest signal intensity.
3.8.6
Setting of SWf-TPPM Decoupling Conditions
To perform SWf-TPPM (SWept-Frequency Two Pulse Phase Modulation) decoupling, ad-
just the pulse width of irr_width_tppm and the phase-shift value of irr_phs_tppm.
1.
Set the standard sample glycine.
2.
Set irr_noise to swfTPPM.
3.
Perform an array measurement for irr_ width_ tppm and irr_phs_tppm.
4.
Click the Submit button.
The pulses occur, and the measurement starts.
If the measurement ends, the nD Processor window automatically opens.
5.
Perform data processing.
6.
Take a slice of the C
7.
Obtain the values of irr_ width_tppm and irr_phs_tppm that give the strong-
est signal intensity in the two-dimensional data of the YZ plane.
NMECAXS_V50-SLD-2
Refer to the user's manual "Data processing" for instructions for processing the
data obtained by the array measurement.
carbon in the 3D processed spectrum.
α
Refer to the user's manual "Data processing" for the instructions for processing
the data obtained by the array measurement.
carbon in the 3D processed spectrum.
α
3 SETTING OF INSTRUMENT CONDITIONS
3-15
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