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

Table 2

Precursor and product ions for the gelatin species and operating parameters for fragmentation voltage and collision-activated dissociation voltage.

Number	Precursor	Product ion	Originated from	Retention time	Fragment voltage	Collision energy
				min	eV	eV
A1	732.8	817.9/961.9	Deer-horn glue	11.2080	175	30
A2	765.4	554.0/733.0	Deer-horn glue	17.1209	135	15
B1	641.3	783.3/726.2	Bovine-hide gelatin	7.4309	135	37
B2	790.9	912.4/841.3	Bovine-hide gelatin	12.5446	175	32
B3	747.3	903.3/847.1	Bovine-hide gelatin	13.4004	155	26
B4	604.8	569.8/910.1	Bovine-hide gelatin	15.2002	135	25
C1	618.8	721.9/778.9	Donkey-hide gelatin	7.7407	135	23
C2	539.8	612.4/923.8	Donkey-hide gelatin	10.1043	135	15
C3	765.9	823.1/991.0	Donkey-hide gelatin	18.8379	155	45