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. Author manuscript; available in PMC: 2013 Oct 15.
Published in final edited form as: Chem Res Toxicol. 2012 Aug 14;25(10):2179–2193. doi: 10.1021/tx300253j

Figure 8.

Figure 8

Product ion mass spectra of A) 5-HO-PhIP ([M+H]+ at m/z 241.2) recovered from N-acetoxy-PhIP-modified SA (upper panel) and 5-HO-[2H5]-PhIP (([M+H]+ at m/z 246.2) recovered from N-acetoxy-[2H5]-PhIP-modified SA (bottom panel) digested with Pronase E, leucine aminopeptidase, and prolidase. The ions observed at m/z 227.2 and m/z 226.2 in the product ion spectrum of 5-HO-[2H5]-PhIP are attributed to losses of HDO and D2O.