Metabolomics Workbench : NIH Data Repository

MB Sample ID: SA339023

Local Sample ID:	SP_WTHFD_1
Subject ID:	SU003245
Subject Type:	Mammal
Subject Species:	Mus musculus
Taxonomy ID:	10090

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Sample Preparation:

Sampleprep ID:	SP003252
Sampleprep Summary:	Untargeted and targeted metabolomics: Serum metabolites were extracted with 80% methanol. The extracts were clarified by centrifugation at 15,000 g for 10 min. The supernatant was collected and dried down using a SpeedVac. For lipidomics analyses: 180 µl of 90% isopropanol was added to 20 µl serum. Samples were vortexed for 2 min, sonicated for 1 min using a probe sonicator and centrifuged at 15,000 g for 10 min. The supernatant was collected and dried down using a SpeedVac. The dried samples were reconstituted using acetonitrile/isopropanol/water 65:30:5 containing stable isotope labeled internal lipid standards (Splash Lipidomix, Avanti Polar Lipids) prior to LC-MS analysis. Free Fatty Acids: Free fatty acids were extracted from serum using 90% methanol (LC/MS grade, Thermo Scientific). The extracts were clarified by centrifugation at 15,000 g for 10 min. The supernatant was collected and dried down using a SpeedVac. The dried sample was reconstituted using 50% methanol prior to LC-MS analysis.

Sampleprep ID:

SP003252

Sampleprep Summary:

Untargeted and targeted metabolomics: Serum metabolites were extracted with 80% methanol. The extracts were clarified by centrifugation at 15,000 g for 10 min. The supernatant was collected and dried down using a SpeedVac. For lipidomics analyses: 180 µl of 90% isopropanol was added to 20 µl serum. Samples were vortexed for 2 min, sonicated for 1 min using a probe sonicator and centrifuged at 15,000 g for 10 min. The supernatant was collected and dried down using a SpeedVac. The dried samples were reconstituted using acetonitrile/isopropanol/water 65:30:5 containing stable isotope labeled internal lipid standards (Splash Lipidomix, Avanti Polar Lipids) prior to LC-MS analysis. Free Fatty Acids: Free fatty acids were extracted from serum using 90% methanol (LC/MS grade, Thermo Scientific). The extracts were clarified by centrifugation at 15,000 g for 10 min. The supernatant was collected and dried down using a SpeedVac. The dried sample was reconstituted using 50% methanol prior to LC-MS analysis.