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MB Sample ID: SA051073
Local Sample ID: | 7_HFD Placebo_B6Jax |
Subject ID: | SU000913 |
Subject Type: | Animal |
Subject Species: | Mus musculus |
Taxonomy ID: | 10090 |
Species Group: | Mammal |
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Sample Preparation:
Sampleprep ID: | SP000920 |
Sampleprep Summary: | HILIC-pos: LC-MS samples were prepared from plasma (10 μL) via protein precipitation with the addition of nine volumes of 74.9:24.9:0.2 v/v/v acetonitrile/methanol/formic acid containing stable isotope-labeled internal standards (valine-d8, Isotec; and phenylalanine-d8, Cambridge Isotope Laboratories; Andover, MA). The samples are centrifuged (10 min, 9,000 x g, 4°C), and the supernatants were injected directly. HILIC-neg:Plasma samples (30μL) were extracted using 120 μL of 80% methanol (VWR) containing 0.05 ng/μL inosine-15N4, 0.05 ng/μL thymine-d4, and 0.1 ng/μL glycocholate-d4 as internal standards (Cambridge Isotope Laboratories). The samples were centrifuged (10 min, 9,000 x g, 4ºC) and the supernatants (10 μL) were injected directly. C18-neg: Plasma samples (20 μL) were extracted using 60 μL of methanol containing PGE2-d4 as an internal standard (Cayman Chemical Co.; Ann Arbor, MI) and centrifuged (10 min, 9,000 x g, 4°C). C8-pos: Lipids were extracted from plasma (10 μL) using 190 μL of isopropanol containing 1-dodecanoyl-2-tridecanoyl-sn-glycero-3-phosphocholine as an internal standard (Avanti Polar Lipids; Alabaster, AL). After centrifugation (10 min, 9,000 x g, ambient temperature), supernatants (10 μL) were injected directly |