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. 2023 Feb 2;11(2):340. doi: 10.3390/vaccines11020340

Figure 7.

Figure 7

Confirmation of final vaccine by LC-MS, UV spectrophotometer and NMR. (A) Disappearance of METH hapten peak, (B) reaction titration between METH hapten and OM, (C) NMR spectrum of OM and hapten––OM conjugate.