L-醋酸賴氨酸 | CP2020 | EP11 | USP2023 | AJI92 |
含量 | ≥98.5% | 98.5~101.0% | 98.0-102.0% | 98.5-101.0% |
酸度 | 6.5-7.5 | / | / | 6.5-7.5 |
比旋度[a]D20 | +8.5°-+10.0° | +8.5~+10.0 | / | +8.5°-+10.0° |
比旋度[a]D25 | / | / | +8.4°-+9.9° | / |
透光 | ≥98.0% | / | / | ≥98.0% |
溶液外觀 | / | clear & colorless | / | / |
氯化物 | ≤0.02% | ≤0.02% | ≤0.05% | ≤0.02% |
銨鹽 | ≤0.02% | ≤0.02% | / | ≤0.02% |
硫酸鹽 | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.02% |
鐵鹽 | ≤10PPM | ≤30ppm | ≤30PPM | ≤10PPM |
重金屬 | ≤10PPM | / | / | ≤10PPM |
砷鹽 | ≤1PPM | / | / | ≤1PPM |
其他氨基酸 | ≤0.2% | / | Individual impurities≤0.5% Total impurities≤2.0% | conform |
茚三酮活性物質(zhì) | / | Any Impurity ≤0.5% | / | / |
干燥失重 | ≤0.50% | ≤0.50% | ≤0.20% | ≤0.20% |
熾灼殘?jiān)?/td> | ≤0.10% | ≤0.10% | ≤0.40% | ≤0.10% |
總菌 | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g |
霉菌&酵母菌 | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g |
致病菌 | 克羅諾桿菌 /腸桿菌 /沙門(mén)氏菌 /蠟樣芽胞桿菌 /梭狀芽胞桿菌 (可根據(jù)要求檢測(cè)) |