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Forward linear prediction on 29Si QCPMG echo train

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29Si MAS QCPMG echo train of beta zeolite is truncated (see Figure 2 A) due to short acquisition duration. Without line broadening processing of the echo train, wiggles appear in the spikelet spectrum (see Figure 3 A).

Forward linear prediction processing of the echo train increases the acquisition duration with calculated data (see Figure 2). As a result, wiggles do not appear in spikelet spectrum. Furthermore, the signal to noise ratio of the spikelet spectrum is improved (see Figure 3H).

Figure 1: Forward linear prediction parameters for 29Si MAS QCPMG echo train, SI = 32k.


Figure 2: Application of forward linear prediction on 29Si MAS QCPMG echo train: (A) without linear prediction; linear prediction with NCOEF = 64 (B), 128 (C), 256 (D), 512 (E), 1k (F), 2k (G), 4k (H), and 8k (I).


Figure 3: Spectrum from forward linear prediction on 29Si MAS QCPMG echo train of Figure 2: (A) without linear prediction; linear prediction with NCOEF = 64 (B), 128 (C), 256 (D), 512 (E), 1k (F), 2k (G), 4k (H), and 8k (I).

Solid-state NMR bibliography for:

Aluminum-27
Antimony-121/123
Arsenic-75
Barium-135/137
Beryllium-9
Bismuth-209
Boron-11
Bromine-79/81
Calcium-43
Cesium-133
Chlorine-35/37
Chromium-53
Cobalt-59
Copper-63/65
Deuterium-2
Gallium-69/71
Germanium-73
Gold-197
Hafnium-177/179
Indium-113/115
Iodine-127
Iridium-191/193
Krypton-83
Lanthanum-139
Lithium-7
Magnesium-25
Manganese-55
Mercury-201
Molybdenum-95/97
Neon-21
Nickel-61
Niobium-93
Nitrogen-14
Osmium-189
Oxygen-17
Palladium-105
Potassium-39/41
Rhenium-185/187
Rubidium-85/87
Ruthenium-99/101
Scandium-45
Sodium-23
Strontium-87
Sulfur-33
Tantalum-181
Titanium-47/49
Vanadium-51
Xenon-131
Zinc-67
Zirconium-91
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