Table 1. Pooled Human Serum and Blank Samples Used in the Study.
method | NMR experiment | number |
---|---|---|
ultrafiltration-serum | 1H 1D NMR (filtrate dried) | 2 |
1H 1D NMR (filtrate not dried) | 2 | |
15N-cholamine tagging and 2D NMR | 2 | |
methanol precipitation | 1H 1D NMR | 2 |
15N-cholamine tagging and 2D NMR | 2 | |
multiple (3-fold) methanol precipitation | 1H 1D NMR | 2 |
intact serum | 1H 1D NMR | 2 |
acetonitrile precipitation | 1H 1D NMR | 2 |
perchloric acid precipitation | 1H 1D NMR | 2 |
trichloroacetic acid precipitation | 1H 1D NMR | 2 |
ultrafiltration-blank | 1H 1D NMR | 2 |