Item

Standard

Analysis data

Appearance

White powder

Conforms

Specific rotation[α]20/D
(C=2 in H2O)

-110 to -120°

-115°

State of solution
(Transmittance)

Not less than 95.0%

98.2%

Heavy metal(Pb)

Not more than 20ppm

<20ppm

Arsenic(As2O3)

Not more than 2ppm

<2ppm

Other amino acids

Chromatographically not detectable

Conforms 

Loss on drying

Not more than 2.0%

0.20%

Residue on ignition(sulfated)

Not more than 0.2%

0.03%

Assay

98.0 to102.0%

99.1%

Inspector:

陈小梅    彭秀明

Manager:

陈书娟

Conclusion

The product is according with standard.