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7.5
PROCESSING
In the MQMAS method, since it is necessary to perform the shearing process for the data
(
Sect. 7.6.1), you need to divide the data into echo and anti-echo components during
the data processing. The flow of MQMAS processing is shown below.
a) F2 axis Fourier transform
b) F2 axis phase correction
c) PN conversion
d) Shearing process (
e) Window function processing
f) PN inverse conversion
g) F1 axis Fourier transform
h) F1 axis phase correction
i) Scaling processing (
■ Processing procedure
This section explains the data processing after the measurement is completed and the data
is transferred from the spectrometer.
When the measurement is completed, the data is transferred from the spectrometer to the
data processing computer, and the nD Processor window opens. Usually, 1d_solid.list is
opened in the process list of the data after the MQMAS measurement. Here, the
data-processing procedure will be explained based on the assumption that the data proc-
essing is performed as it is in its current state.
1.
Press the 1D button.
Fourier transformation is performed on the F2 axis.
NMECAXS_V50-SLD-2
Sect. 7.6.1)
Sect. 7.6.2 )
7 MQMAS METHOD
7-9
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