Setting Of Xix Decoupling Conditions; Setting Of Spinal64 Decoupling Conditions - JEOL JNM-ECA Series User Manual

3 SETTING OF INSTRUMENT CONDITIONS
3.8.3

Setting of XiX Decoupling Conditions

To perform XiX (X inverse-X) decoupling, adjust the pulse width: irr_width_xix.
1.
Set the standard sample glycine.
2.
Set irr_noise to XiX.
3.
Perform an array measurement for irr_ width_XiX
4.
Click the Submit button.
The pulses occur, and the measurement starts.
When the measurement ends, the nD Processor window automatically opens.
5.
Perform data processing.
6.
Obtain irr_width_xix that gives the strongest signal intensity of the C
bon.
3.8.4

Setting of SPINAL64 Decoupling Conditions

To perform the SPINAL64 decoupling, adjust the pulse width of irr_width_tppm.
1.
Set the standard sample glycine.
2.
Set irr_noise to SPINAL64.
3.
Perform an array measurement for irr_ width_ tppm.
4.
Click the Submit button.
The pulses occur, and the measurement starts
5.
Perform data processing.
6.
Obtain irr_width_tppm that gives the strongest signal intensity of the C
3-14
The optimum value of irr_ width_XiX is around 1.85 or 2.85 times the recip-
rocal of the spinning speed.
Refer to the user's manual "Data processing" for the instructions for processing
the data obtained by the array measurement.
The best condition of the XiX depends on the spinning speed. When you
change the spinning speed in a measurement, adjust the measurement
conditions according to the spinning speed.
When the measurement ends, the nD Processor window automatically opens.
Refer to the user's manual "Data processing" for the instructions for processing
the data obtained by the array measurement.
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NMECAXS_V50-SLD-2