Uric Acid
| Analyt: | Uric Acid |
| Matrix: | Serum, Urine |
| Measuring Method: | GC-ID/MS |
| Standard: | Uric Acid NIST 913b |
| Internal Standard: | ¹⁵N₂-Uric Acid |
| Sample Processing: | Samples are spiked gravimetrically with internal standard and equilibrated, then ultrafiltered. Derivatisation is with Silyl 991 in pyridine. |
| Measurement: | Measurement at m/z 456 and m/z 458 |