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2.4.1. Low-field nuclear magnetic resonance (LF-NMR)

QJ Qianqian Jiang
SZ Shuang Zhao
WZ Wenting Zhao
PW Pan Wang
PQ Peiyou Qin
JW Junjuan Wang
YZ Yuanyuan Zhao
ZG Zhiwen Ge
XZ Xiaoyan Zhao
DW Dan Wang
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A low-field nuclear magnetic resonance (LF-NMR) analyzer (NMI20-025 V-I, New Mai Electric Co., Ltd., Shanghai, China) was used to monitor water distribution and migration. Detailedly, samples (2.00 ± 0.05 g) were placed into an NMR glass tube and removed into a 25 mm diameter nuclear magnetic coil, operated at 32 °C. The Carre-Purcell-Meiboom-Gill (CPMG) pulse sequence was adopted to test transverse relaxation time (T2) and corresponding peak areas (A2). The parameters were performed as follows: TW = 4500 ms, TE = 0.5 ms, NECH = 12,000, NS = 8, and total iterations number = 100,000.

Copyright and License information:  ©2024 The Authors
This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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