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MB Sample ID: SA212926

Local Sample ID:batch4_MT_20210729_187
Subject ID:SU002319
Subject Type:Human
Subject Species:Homo sapiens
Taxonomy ID:9606

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Sample Preparation:

Sampleprep ID:SP002325
Sampleprep Summary:The plasma samples were thawed in ice. Metabolites extraction were carried out by protein precipitation using extraction solvent, acetonitrile:methanol (8:1, v/v) containing 0.1% formic acid and isotope labelled Trimethyl-13C3]-caffeine, [13C5]-L-glutamic acid, [15N2]-Uracil, [15N,13C5]-L-methionine, [13C6]-D-glucose and [15N]-L-tyrosin as spike-in controls. 30 μl of plasma was taken and 60 μl of extraction solvent was added. All samples were vortexed and incubated with shaking at 1000 rpm for 10 min at 4°C followed by centrifugation at 4°C for 15 min at 15,000 rpm. The supernatant was transferred into mass spec vials and 2 μl injected into UHPLC-MS.
Extraction Method:Protein precipitation
Extract Storage:-80℃