Analysis contents

Analysis standard

Analysis results

Appearance and solubility

A white crystalline powder or colourless crystalline pearls, Freely soluble in water, sparingly soluble in ethanol.

Qualified.

Identification

Positive.

Positive

Loss on drying

≤0.5%

0.1%

Acidity or alkalinity

Conforms

Conforms

Appearance of solution

Conforms

Conforms

Arsenic

≤0.0001%

Conforms

Barium

Conforms

Conforms

Iron

≤0.0002%

Conforms

Magnesium and alkaline-earth metals

≤0.01%

Conforms

Bromides

≤0.005%

Conforms

Iodides

Conforms

Conforms

Sulphate

≤0.02%

Conforms

Aluminum

≤0.00002%

Conforms

Heavy metals

≤0.0005%

Conforms

Ferrocyanides

Conforms

Conforms

Phosphates

≤0.0025%

Conforms

Nitrites

The absorbance is not more than 0.01.

0.003

Bacterial endotoxin

≤5IU/g

Conforms

Colony counting

500 CFU/g

22 CFU/g

Assay

99.0% ~ 100.5%

99.8%