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  Indian J Med Microbiol
 

Figure 3: Mass spectra of standard compounds 1−9. Albiflorin (1); paeoniflorin (2); liquiritin (3); nodakenin (4); coumarin (5); liquiritigenin (6); cinnamic acid (7); cinnamaldehyde (8); and glycyrrhizin (9)

Figure 3: Mass spectra of standard compounds 1−9. Albiflorin (1); paeoniflorin (2); liquiritin (3); nodakenin (4); coumarin (5); liquiritigenin (6); cinnamic acid (7); cinnamaldehyde (8); and glycyrrhizin (9)