Test Items | Specification | Method | ||
Appearance | Reddish Brown | Powder | Visual | |
Purity (on dry basis) | ≥98% | HPLC | ||
Loss on Drying | ≤12.0% | Fischer Titration | ||
Heavy Metals | ≤ 10 ppm | ICP-MS | ||
Arsenic | ≤ 1.5 ppm | ICP-MS | ||
Lead | ≤ 1 ppm | ICP-MS | ||
Mercury | ≤ 0.2 ppm | ICP-MS | ||
Cadmium | ≤ 1 ppm | ICP-MS | ||
Total Bacterial Count | ≤1000 CFU/g | USP<2021> | ||
E. coli | Absent/10g | USP<2022> | ||
Salmonella | Absent/25g | USP<2022> | ||
Staphylococcus aureus | Absent/25g | USP<2022> | ||
Mold & Yeast | ≤100 CFU/g | USP<2021> |