Peak 1 at Retention Time 1.24 Abundance Scan119(1.239min):DJX-20.D(-) 43 300000 200000 29 100000 1519 31 50 62 7175 90 0 m/z--> 9 20 30 90 50 60 70 80 90 100 Peak 2 at Retention Time 1.25 Abundance scan120(1.249m1n):DJX-20.D(-) 55 1000000 500000 39 27 75 51 90 0 1518 38 62 73 87 m/z--> 10 203040 50 60 7080 90100 Peak 3 at Retention Time 1.51 Abundance Scan146(1.511min):DJX-20.D(-) 57 29 100000 43 71 50000 31 15 7885 119 0 m/z--> 1020304050 60 70 80 90100110120 Peak 4 at Retention Time 1.54 Abundance scan149(1.542min):DJX-20.D(-) 55 2000000 1000000 39 90 75 15 270 m/z--> 20406080100120140160180200220240260 图S5样品不同保留时间的离子碎片2 Figure S5 Fragment ion2 of the sample with different retention time S4S4 图 S5 样品不同保留时间的离子碎片 2 Figure S5 Fragment ion 2 of the sample with different retention time