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. 2024 May 15;14(5):2555–2569. doi: 10.62347/QJBG3026

Figure 3.

Figure 3

Total ion chromatograms of PACs and TAs in the standard samples and teas. (A) The TIC profile of PACs standard sample (25 μg/mL) in UHPLC-HRMS analysis, the indicated peaks representing: catechin (1), procyanidin C (2 and 6), procyanidin (3), epicatechin (4), and procyanidin B-gallate (5 and 7). The corresponding PAC signals in Oriental Beauty tea (B) and Sun-Link-Sea High-Mountain tea (C). (D) The TIC profile of TAs standard sample (25 μg/mL) in UHPLC-HRMS analysis, the indicated peaks representing: GA (1), 1GG (2), 2GG (3), 3GG (4), 4GG (5), 5GG (6), and 6GG (7). The corresponding TA signals in Oriental Beauty tea (E) and Sun-Link-Sea High-Mountain tea (F).