| L-精氨酸盐酸盐 | CP2020 | EP11 | USP2023 | AJI92 |
| 含量 | ≥98.5% | 98.5-101.0% | 98.5-101.5% | 99.0-101.0% |
| 酸度 | / | / | / | 4.7-6.2 |
| 比旋度[a]D20 | +21.5°-+23.5° | +21.0°-+23.5° | +21.4°-+23.6° | +22.1°-+22.9° |
| 比旋度[a]D25 | / | / | / | / |
| 透光 | ≥98.0% | / | / | ≥98.0% |
| 溶液外观 | / | clear & colorless ≤BY6 | / | / |
| 氯化物 | 16.5-17.1% | / | 16.5-17.1% | 16.58-17.00% |
| 铵盐 | ≤0.02% | ≤0.02% | / | ≤0.02% |
| 硫酸盐 | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.02% |
| 铁盐 | ≤10PPM | ≤10PPM | / | ≤10PPM |
| 重金属 | ≤10PPM | / | / | ≤10PPM |
| 砷盐 | ≤1PPM | / | / | ≤1PPM |
| 其他氨基酸 | ≤0.20% | / | Individual impurities≤0.5% Total impurities≤2.0% | conform |
| 茚三酮活性物质 | / | Each impurity≤0.2% Total impurity≤0.5% | / | / |
| 干燥失重 | ≤0.20% | ≤0.50% | ≤0.20% | ≤0.20% |
| 炽灼残渣 | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% |
| 蛋白质 | no precipitate | / | / | / |
| 总菌 | ≤ 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 | 克罗诺杆菌 /肠杆菌 /沙门氏菌 /蜡样芽胞杆菌 /梭状芽胞杆菌 （可根据要求检测） | |||
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