Item

Standard

Analysis data

Appearance

White crystals or crystalline powder

conforms

Specific rotation[α]20/D
(C=8 in 1N HCl)

+5.5º to +7.0º

+6.24º

Transmittance

Not less than 98.0%

99.3%

Chloride(C1)

19.89% to 20.29%

19.91%

Sulfate (SO4)

Not more than 0.02%

<0.02%

Iron (Fe)

Not more than 10ppm

<10ppm

Heavy metal(Pb)

Not more than 10ppm

<10ppm

Arsenic(As2O3)

Not more than 1ppm

<1ppm

Ammonium(NH4)

Not more than 0.02%

<0.02%

Other amino acids

Chromatographically not detectable

conforms

Loss on drying

8.5% to 12.0%

10.32%

Residue on ignition(sulfated)

Not more than 0.10% 

0.05%

Assay

99.0%to100.5%

99.2%

PH

1.5 to 2.0

1.8

Inspector:

陈君        王琼

Manager:

彭秀明

Conclusion

The product is according with standard. AJI92