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Numbers of metabolites recovered in repeated samples compared to metabolites found in the chosen extraction protocol. Variation coefficients (CVmean) and (CVmin–Cvmax) were calculated from the fusion of the three platforms.
| Urine | Blood | Saliva | Feces | |
|---|---|---|---|---|
| Sample preparation chosen | Urine/MeOH (1:8) |
Blood/MeOH (1:8) |
Saliva/ACN (1:2) |
MeOH/H2O (1:1) |
| Number of metabolites | 151 | 104 | 90 | 208 |
| CV mean % (min–max) | 7% (2–53%) | 8% (3–53%) | 7% (2–26%) | 11% (3–40%) |
