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MB Sample ID: SA244884
| Local Sample ID: | MNBAL-136B_1 |
| Subject ID: | SU002538 |
| Subject Type: | Mammal |
| Subject Species: | Homo sapiens |
| Taxonomy ID: | 9606 |
| Gender: | Male and female |
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Sample Preparation:
| Sampleprep ID: | SP002544 |
| Sampleprep Summary: | The BALF samples were allowed to thaw at 4°C overnight, and then split into technical triplicates of 200 μL that were transferred and sealed into sterilized 2 mL GC headspace vials with Supelco® PTFE/silicone septum magnetic screw caps (Sigma-Aldrich®, St. Louis, MO). All samples were stored in GC headspace vials for up to 14 d at -20°C until analyzed. Samples were randomized for analysis. Volatile metabolites sampling was performed by solid phase microextraction (SPME) using a Gerstel® MPS Robotic Pro MultiPurpose autosampler directed by Maestro® software (Gerstel®, Inc., Linthicum, MD). Volatile metabolite analysis was performed by two-dimensional gas chromatography−time-of-flight mass spectrometry (GC×GC–TOFMS) using a LECO® Pegasus® 4D and Agilent® 7890B GC (LECO® Corp., St. Joseph, MI). An external alkane standards mixture (C8 – C20; Sigma-Aldrich®) was sampled multiple times for calculating retention indices (RI). The injection, chromatographic, and mass spectrometric methods for analyzing the alkane standards were the same as for the samples. |
| Extraction Method: | Solid-phase microextraction (SPME) |
