L-ARGININE
ITEM |
SPECIFICATION |
Assay(on dry basis): |
98.50%~102.5% |
Identification: |
Infrared absorption |
Appearance: |
White crystals or crystalline Powder |
Specific Rotation[a]D25° |
+26.3°~ +27.9° |
Chloride(Cl): |
≤0.05% |
Sulfate(SO4): |
≤0.03% |
Iron(Fe): |
≤0.003% |
Heavy Metals: |
≤0.0015% |
Loss on drying: |
≤0.5% |
Residue on Ignition: |
≤0.3% |
Chromatographic purity: |
Any individual impurity: ≤0.5% Total Impurities: ≤2.0% |
Organic volatile impurities: |
Meet the requirements |
Total plate count: |
≤1000cfu/g |
Yeast&mold: |
≤100cfu/g |
E.Coli: |
Negative |
Salmonella: |
Negative |
Conclusion: The product conforms to the USP31 Standard. |