Inspection items
Specification (AJI)
Specification (CP2000)
Appearance
White crystals or white powder
Appraisal
Measured by infrared absorption spectroscopy instruments
Specific rotation
-215°- -225°
-215°- -230°
Dissolution conditions
≥ 98.0%
Chlorine content
≤ 0.020%
≤ 0.02%
Ammonium salt(NH4)
---
Sulfate (SO4)
Iron (Fe)
≤ 20PPm
≤ 10PPm
Heavy metal (Pb)
Arsenic (As2O3)
≤ 1PPm
Other amino acids
Standards compliant
Standards complia
Loss on drying
≤ 0.20%
≤ 0.2%
Residue on ignition (sulfated)
≤ 0.10%
≤ 0.1%
Content
98.5-101.0%
≥ 98.5%
PH value
5.0 - 6.5
Volatile organic compounds