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Table 4 Relative retention times and characteristic ions of Neu5Ac and Neu5Gc analysed by LC-MS/MS

From: Molecular characterization of cytidine monophospho-N-acetylneuraminic acid hydroxylase (CMAH) gene and frequency of blood types in stray cats of İzmir, Turkey

  Collision-induced dissociation fragments
Sialic acid Retention Time [M+H]+ [M+H-H2O]+ Fragments (m/z)
Neu5Gc 2,8 442 424 313-295-268-283-229
Neu5Ac 3,2 426 408 313-295-283-229