Establishment of fingerprint of phenolic compounds in Semen Ziziphi Spinosae and study on the spectrum-effect relationship based on different preceding cropping areas - Jiang, Junfeng; Luo, Jun; Zheng, Wenyu; Liu, Jiayi; Jiang, Hui; Wu, Cuiyun; Bai, Hongjin (Frontiers in Chemistry, 2025)