Metabolomics Workbench : NIH Data Repository

MB Sample ID: SA151273

Local Sample ID:	1
Subject ID:	SU001719
Subject Type:	Human
Subject Species:	Homo sapiens
Taxonomy ID:	9606

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Sample Preparation:

Sampleprep ID:	SP001725
Sampleprep Summary:	Lipids were extracted from 50 µL of plasma by adding 4 mL of methyl tert-butyl ether (MTBE) and 1.2 mL of butylated hydroxytoluene (BHT) then incubating overnight at 4°C. The following day, 1.25 mL of 0.15 M ammonium acetate was added, and the samples were centrifuged at 2,000 x g for 10 minutes at 4°C to obtain phase separation. The upper organic phase was collected and the extracted lipids equivalent to 100 µg of protein were dried in a speed vacuum concentrator. The samples were reconstituted in 50 µL of chloroform:methanol (1:1) and sonicated before analysis by liquid chromatography tandem mass spectrometry (LC-MS/MS). The lipids were analyzed by LC-MS/MS using an Accela 600 HPLC and a Q Exactive Orbitrap mass spectrometer.

Sampleprep ID:

SP001725

Sampleprep Summary:

Lipids were extracted from 50 µL of plasma by adding 4 mL of methyl tert-butyl ether (MTBE) and 1.2 mL of butylated hydroxytoluene (BHT) then incubating overnight at 4°C. The following day, 1.25 mL of 0.15 M ammonium acetate was added, and the samples were centrifuged at 2,000 x g for 10 minutes at 4°C to obtain phase separation. The upper organic phase was collected and the extracted lipids equivalent to 100 µg of protein were dried in a speed vacuum concentrator. The samples were reconstituted in 50 µL of chloroform:methanol (1:1) and sonicated before analysis by liquid chromatography tandem mass spectrometry (LC-MS/MS). The lipids were analyzed by LC-MS/MS using an Accela 600 HPLC and a Q Exactive Orbitrap mass spectrometer.