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Journal of Analytical Methods in Chemistry
Volume 2015 (2015), Article ID 259757, 9 pages
http://dx.doi.org/10.1155/2015/259757
Research Article

Detection of Gelatin Adulteration in Traditional Chinese Medicine: Analysis of Deer-Horn Glue by Rapid-Resolution Liquid Chromatography-Triple Quadrupole Mass Spectrometry

National Institute for Food and Drug Control, State Food and Drug Administration, 2 Tiantan Xili, Beijing 100050, China

Received 29 September 2014; Revised 3 February 2015; Accepted 27 February 2015

Academic Editor: Shao-Nong Chen

Copyright © 2015 Jia Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Simultaneous identification of donkey-hide gelatin and bovine-hide gelatin in deer-horn glue was established by rapid-resolution liquid chromatography-triple quadrupole mass spectrometry. Water containing 1% NH4HCO3 was used for sample dissolution and trypsin was used for hydrolysis of the gelatins. After separation by a SB-C18 reversed-phase analytical column, collagen marker peptides were detected by mass spectrometry in positive electrospray ionization mode with multiple reaction monitoring. The method was specific, precise and reliable, and suitable for detection of adulterants derived from donkey-hide gelatin and bovine-hide gelatin in deer-horn glue.