Figure 1

Base peak ion (BPI) chromatogram of tissue samples in each group in positive and negative ion mode. (A) BC group; (B) PbL group; (C) PbM group; (D) PbH group. These figures were created with Masslynx (version 4.1, https://www.waters.com/).

Base peak ion (BPI) chromatogram of tissue samples in each group in positive and negative ion mode. (A) BC group; (B) PbL group; (C) PbM group; (D) PbH group. These figures were created with Masslynx (version 4.1, https://www.waters.com/).