Table 2 Positive base peak chemical components of BSTL identified by HPLC-ESI/MS
No | Retention time | Formula | Experimental mass | Identification |
|---|---|---|---|---|
1 | 1.54 | C5H11NO2 | 118.0859 | Betaine |
2 | 1.56 | C7H7NO2 | 138.055 | Trigonelline |
3 | 1.64 | C7H13NO2 | 144.1019 | Stachydrine |
4 | 2.33 | C5H5N5 | 136.0615 | Adenine |
5 | 2.35 | C5H4N4O | 137.0458 | 6-Hydroxypurine |
6 | 2.35 | C6H5NO2 | 124.0390 | Nicotinic acid |
7 | 2.70 | C6H13NO2 | 132.1018 | Isoleucine |
8 | 3.52 | C10H13N5O3 | 252.1089 | Cordycepin |
9 | 7.71 | C16H24NO5 | 310.1645 | Sinapine |
10 | 7.80 | C17H20N4O6 | 377.1455 | Vitamin B2 |
11 | 8.11 | C20H24NO4 | 342.1697 | Magnoflorine |
12 | 9.43 | C22H22O10 | 447.1281 | Calycosin-7-O-glucoside |
13 | 9.59 | C15H10O7 | 303.0497 | Quercetin |
14 | 9.59 | C21H20O12 | 465.1025 | Hyperin |
15 | 10.58 | C16H12O7 | 317.0655 | Isorhamnetin |
16 | 10.92 | C22H22O11 | 463.1239 | Pratensein-7-O-glucoside |
17 | 13.15 | C17H18O5 | 303.1227 | Isomucronulatol |
18 | 13.64 | C16H12O5 | 285.0755 | Calycosin |
19 | 22.69 | C18H14O3 | 279.1013 | Dihydrotanshinone I |
20 | 25.37 | C18H12O3 | 277.0858 | Tanshinone I |
21 | 25.44 | C19H20O3 | 297.1483 | Cryptotanshinone |
22 | 28.22 | C19H18O3 | 295.1326 | Tanshinone IIA |