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Item | Standard |
Appearance | White Powder |
Glucuronic Acid | ≥45.0% |
Sodium Hyaluronate | 95.0%~105.0% |
Absorbance | ≤0.25(A257nm), ≤0.15(A280nm) |
pH | 6.0~7.5 |
Protein | ≤0.1% |
Intrinsic Viscosity | 1. 6 m3 /kg~2.5m3 /kg |
Residue on Ignition | ≤18.0% |
Heavy metal | ≤20ppm |
Bacterial Endotoxins | <0.05 IU/mg |
Total Plate Count | <10cfu/g |
Molds & Yeast | <10cfu/g |
Staphylococcus aureus | Negative |
Pseudomonas Aeruginosa | Negative |







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