Test Items

Eyes-drop Grade

Injection Grade

Description

White, fine powder

White, fine powder

pH

6.0-7.5

6.0-7.5

Assay

≥91.0%

≥91.0%

Transparency

≥99.0%

≥99.0%

Molecular Weight

≥1.00×10 6

≥2.00×10 6

Glucuronic Acid

≥44.0%

≥44.0%

Protein

≤0.1%

≤0.1%

Heavy Metals

≤20ppm

≤20ppm

Arsenic

≤2ppm

≤2ppm

Loss on Drying

≤10.0%

≤10.0%

Nitrogen

3.0-4.0%

3.0-4.0%

Intrinsic Viscosity

≥18.0dL/g

≥30.0dL/g

Bacterial Endotoxin

≤0.5IU/mg

≤0.05IU/mg

Bacteria Count

<10cfu/g

<10cfu/g

Mold and Yeast

<10cfu/g

<10cfu/g

Staphylococcus Aureus

Negative

Negative

Pseudomonas Aeruginosa

Negative

Negative