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. 2013 Aug 17;86:189–197. doi: 10.1016/j.jpba.2013.08.010

Fig. 1.

Fig. 1

Product ion mass spectra of [M+H]+ ions of (1) neochlorogenic acid, (2) chlorogenic acid, (3) cryptochlorogenic acid, (4) 3,5-dicaffeoylquinic acid, (5) 3,4-dicaffeoylquinic acid and tinidazole (IS) in positive mode.