Additional file 18 of Comparison between 5 extractions methods in either plasma or serum to determine the optimal extraction and matrix combination for human metabolomics

Additional file 18. Table S14: Unlabeled and labeled standard analytes used in the study. Mass weight expected, retention times and m/z are obtained from CD3.3 with several database onlines. MeOH : methanol; MeOH:ACN : methanol combined with acetonitrile; ACN: acetonitrile; SPE : solid preparation extraction.