细节
规格
| L-谷氨酸 | CP2020 | EP11 | USP43 |
| 测定 | ≥98.5% | 98.5-100.5% | 98.5-100.5% |
| ph | / | / | / |
| 比较旋转[A] D20 | +31.5° - +32.5° | +30.5° - +32.5° | +31.5° - +32.5° |
| 比较旋转[A] D25 | / | / | / |
| 传输(T430) | ≥98.0% | / | / |
| 溶液的外观 | / | 清晰无色 | / |
| 氯化物(CL) | ≤0.02% | ≤0.02% | ≤0.02% |
| 铵(NH4) | ≤0.02% | ≤0.02% | / |
| 硫酸盐(SO4) | ≤0.02% | ≤0.03% | ≤0.02% |
| 铁(铁) | ≤5ppm | ≤10ppm | ≤10ppm |
| 重金属(PB) | ≤10ppm | / | ≤15ppm |
| 砷 | ≤1ppm | / | / |
| 其他氨基酸 | ≤0.50% | / | 单个杂质≤0.5% |
| 总杂质≤2.0% | |||
| 忍者阳性物质 | / | 符合 | / |
| 干燥时损失 | ≤0.50% | ≤0.50% | ≤0.10% |
| 点火的残留物 | ≤0.10% | ≤0.10% | ≤0.10% |
| 总板数 | / | ≤1000cfu/g | / |
| 模具和酵母 | / | ≤100cfu/g | / |