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. Author manuscript; available in PMC: 2008 Oct 27.

Published in final edited form as: Anal Chem. 2007 Feb 15;79(4):1569–1574. doi: 10.1021/ac0615910

ESI mass spectra of derivatized DAG mixtures from (A) lean mouse livers (B) obese mouse livers. An identical amount of the DAG standard (12:0/12:0) (1 nmol/mg wet weight) was added to both tissue samples before the derivatization step to serve as internal standard. Unidentified peaks are labeled with a star.

ESI mass spectra of derivatized DAG mixtures from (A) lean mouse livers (B) obese mouse livers. An identical amount of the DAG standard (12:0/12:0) (1 nmol/mg wet weight) was added to both tissue samples before the derivatization step to serve as internal standard. Unidentified peaks are labeled with a star.