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Recovery of total HA concentration by LC-MS/MS compared to the normative HA concentration.
| U3 | U4 | VG | |
|---|---|---|---|
| HA concentration based on LC-MS/MS, μg/mL | 58.12 | 82.23 | 64.84 |
| Normative HA content, μg/mL | 90.00 | 120.00 | 90.00 |
| Recovery, % | 64.57 | 68.53 | 72.04 |
Note: Recovery (%), ratio of total HA concentration measured by LC-MS/MS to normative concentration of total HA.
