產品規格
L-蛋氨酸 | USP40 | AJI92 | EP6 | USP43 | EP8 |
含量 | 98.5-101.5% | 99.0-100.5% | 99.0-101.0% | 98.5-101.5% | 99.0-101.0% |
酸度 | 5.6-6.1 | 5.6-6.1 | 5.5-6.5 | 5.6-6.1 | 5.5-6.5 |
比旋度[a]D20 | / | +23.0°-+24.5° | +22.5°-+24.0° | +22.4°-+24.7° | +22.5°-+24.0° |
比旋度[a]D25 | +22.4°-+24.7° | / | / | / | / |
透光 | / | ≥98.0% | clear & colorless | / | / |
氯化物 | ≤0.03% | ≤0.02% | ≤0.02% | ≤0.05% | ≤0.02% |
銨鹽 | / | ≤0.02% | ≤0.02% | ≤0.02% | |
硫酸鹽 | ≤0.03% | ≤0.02% | ≤0.03% | ≤0.03% | ≤0.03% |
鐵鹽 | ≤30PPM | ≤10PPM | ≤10PPM | ≤30PPM | ≤10PPM |
重金屬 | ≤15PPM | ≤10PPM | ≤10PPM | / | / |
砷鹽 | / | ≤1PPM | / | / | / |
其他氨基酸 | individual impurities≤0.5% total impurities≤2.0% | conforms | / | individual impurities≤0.5% total impurities≤2.0% | / |
茚三酮活性物質 | / | / | conform | / |
Each impurity≤ 0.2%
Total impurities≤ 0.5%
|
干燥失重 | ≤0.3% | ≤0.20% | ≤0.50% | ≤0.3% | ≤0.50% |
熾灼殘渣 | ≤0.4 | ≤0.10% | ≤0.10% | ≤0.4 | ≤0.10% |
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