Fig. 4From: Mass spectrometry identification of the liquor contained in the plum vase excavated from Jurou Li’s Grave of the Jin Dynasty (1115–1234 CE) in Xi’an, Shannxi, ChinaMS/MS spectrum of the doubly charged ion at m/z = 416.748 from the digested extract of the liquid sample from the plum vase and presenting the y and b fragments of the peptide sequence SISISGLR specific to the cytochrome b-c1 complex subunit Rieske from Nadsonia fulvescensBack to article page