| L-精氨酸 | CP2020 | EP11 | USP2023 | AJI92 |
| 含量 | ≥99.0% | 98.5-101.0% | 98.5-101.5% | 99.0-101.0% |
| 酸度 | 10.5-12.0 | / | / | 10.5-12.0 |
| 比旋度[a]D20 | +26.9°-+27.9° | +25.5°-+28.5° | / | +26.9°-+27.9° |
| 比旋度[a]D25 | / | / | +26.3°-+27.7° | / |
| 透光 | ≥98.0% | / | / | ≥98.0% |
| 溶液外觀 | / | clear & colorless ≤BY6 | / | / |
| 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 | ≤10PPM | ≤30PPM | ≤10PPM |
| 重金屬 | ≤10PPM | / | / | ≤10PPM |
| 砷鹽 | ≤1PPM | / | / | ≤1PPM |
| 其他氨基酸 | ≤0.4% | / | Individual impurities≤0.5% Total impurities≤2.0% | conform |
| 茚三酮活性物質(zhì) | / | Each impurity≤0.2% Sum of impurities≤ 0.5% | / | / |
| 干燥失重 | ≤0.50% | ≤0.50% | ≤0.50% | ≤0.50% |
| 熾灼殘?jiān)?/td> | ≤0.10% | ≤0.10% | ≤0.30% | ≤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 /沙門氏菌 /蠟樣芽胞桿菌 /梭狀芽胞桿菌 （可根據(jù)要求檢測） | |||
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