MitoP-d15 is intended for use as an internal standard for the quantification of MitoP by GC- or LC-MS. MitoP is a phenol product produced by the reaction of H2O2 with the ratiometric mass spectrometry probe MitoB . MitoB contains a triphenylphosphonium cation component that drives its accumulation in mitochondria where its arylboronic moiety selectively reacts with H2O2 to produce MitoP.1,2 Quantifying the MitoP/MitoB ratio by LC-MS/MS reflects the mitochondrial matrix H2O2 concentration.
1.CochemÉ, H.M., Quin, C., McQuaker, S.J., et al.Measurement of H2O2 within living Drosophila during aging using a ratiometric mass spectrometry probe targeted to the mitochondrial matrixCell Metabolism13(3)340-350(2011) 2.CochemÉ, H.M., Logan, A., Prime, T.A., et al.Using the mitochondria-targeted ratiometric mass spectrometry probe MitoB to measure H2O2 in living DrosophilaNature Protocols7(5)946-958(2012)