Using the Doubly Charged Selected Ion Coupled with MS/MS Fragments Monitoring (DCSI-MS/MS) Mode for the Identification of Gelatin Species

Figure 2

Doubly charged selected ion chromatograms obtained from the tryptic digest analysis of (a) donkey-hide gelatin, (b) bovine-hide gelatin, (c) pig-hide gelatin, (d) tortoise shell glue, and (e) deerhorn glue.

(a)

(b)

(c)

(d)

(e)