Analytical Items | Standard |
Appearance | White crystals or crystalline powder |
Assay | 97%~103% |
Odor & Taste | Characteristic |
Identification (IR) | Meet the requirements |
Specific Optical Rotation | -29°~ -32° |
Moisture | ≤ 0.5 % |
Residue on ignition | ≤ 0.1% |
Heavy Metals | ≤ 10ppm |
Pb | ≤ 2ppm |
As | ≤ 2ppm |
Cd | ≤ 1ppm |
Hg | ≤ 0.1ppm |
Residual Solvent | |
Total plate count | <1000cfu/g |
Yeast & Mould | <100cfu/g |
E.Coli | Negative |
Salmonella | Negative |
Aflatoxins | Negative |