Name: QC flags (nightingale)
Description: Nightingale QC flags
This is a flat (unstructured) list which uses integers to represent categories or special values.
| Coding can be downloaded here as a tab-separated file. | 
Description: Nightingale QC flags
This is a flat (unstructured) list which uses integers to represent categories or special values.
| Coding can be downloaded here as a tab-separated file. | 
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| Coding | Meaning | 
|---|---|
| 1 | Below limit of quantification | 
| 2 | Citrate plasma | 
| 3 | Degraded sample | 
| 4 | High ethanol | 
| 5 | Isopropyl alcohol | 
| 6 | Low glutamine or high glutamate | 
| 7 | Medium ethanol | 
| 8 | Polysaccharides | 
| 9 | Unknown contamination | 
| 10 | Ethanol | 
| 11 | Unidentified small molecule (b) | 
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