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ITEM | SPECIFICATION |
Appearance | White powder or granules |
Identification A. Infrared absorption B. Reaction of sodium | Consistent with the reference spectrum of sodium hyaluronate Positive |
Sodium Hyaluronate | ≥93.0 |
pH (0.1% solution) | 6.0~7.5 |
Transparency | ≥99.0 |
Loss on drying | ≤10.0 |
Intrinsic viscosity, [η]/(dL/g) | 14.49~23.65 dL/g |
Molecular Weight | Oligo HA≤10kDa LMW HA 200kDa-600kDa MMW HA 800kDa-1500kDa HM HA >1500kDa |
Protein | 0.05 max. |
Heavy metals(total as Pb, mg/kg) | ≤20ppm |
Total Plate Counts | <10cfu/g |
Molds and Yeasts | <10cfu/g |
Staphylococcus aureus | Absent |
Pseudomonas aeruginosa | Absent |