Item

Standard

Analysis data

Appearance

White crystals or crystalline powder

conforms

Assay

99.0%~101.0%

99.43%

Specific rotation[α]D/20

-24.0°~ -26.0°

-25.02°

Transmittance

³ 98.0%

98.6%

PH

2.50 ~ 3.50

3.1

Loss on drying

£ 0.20 %

0.15%

Residue on ignition

£ 0.10%

0.08%

Chloride(C1)

£ 0.02%

<0.02%

Ammonium (NH4+)

£ 0.02%

<0.02%

Sulfate(SO4)

≤0.02%

＜0.02％

Iron(Fe)

£ 0.001%

<0.001%

Heavy metals(Pb)

£ 10 PPM

<10PPM

Arsenic(As2O3)

£ 0.0001%

< 0.0001%

 Other amino acids

≤0.30%

conforms

Conclusion

The product is according with standard AJI97