Test Items | Specification | Test Result |
Appearance | White or almost white powder or granule | Complied |
PH(1% water solution) | 5.0 ~ 8.5 | 6.6 |
Trans mittance | T 550nm ≥99.0% | 99. 9 % |
Absorbance | A 280nm ≤ 0.25 | 0.05 |
Loss on drying | ≤ 10 .0% | 6.5% |
Glucuronic acid | ≥4 5.0 % | 4 7.0 % |
Sodium hyaluronate | ≥ 93.0% | 97.2% |
Molecular weight, Dalton | measured value | 1.0*10 4 Dalton |
Intrinsic viscosity | measured value | 0.47dL/g |
Kinematic viscosity | measured value | 1.05mm 2 /s |
Protein | ≤0.1% | 0.03% |
Heavy Metal s | ≤2 0mg/kg | <10mg/kg |
Bacteria counts | ≤ 100 cfu/g | Complied |
Mold & Yeast | ≤ 50 cfu/g | Complied |
Staphylococcus aureus | Negative /g | Negative |
Pseudomonas aeruginosa | Negative /g | Negative |
Conclusion | Qualified With Enterprise Standard |