指标名称 | 规格 | |||||
分析纯 | 化学纯 | 中国药典 | 美国药典 | 欧洲药典 | 日本药局方 | |
含量 | ≥99.5% | ≥99.0% | 99.0%-103.0% | 99.0%-105.0% | 99.0%-103.9% | 99.0%-103.0% |
性状 | 白色结晶 | 白色结晶 | 白色结晶 | 白色结晶 | 白色结晶 | 白色结晶 |
澄清度试验 | 合格 | 合格 | 合格 | 合格 | 合格 | 合格 |
PH | - | - | 9.0-9.6 | - | 9.0-9.6 | 9.1-9.6 |
氯化物 | ≤0.002% | ≤0.005% | ≤0.02% | - | - | - |
硫酸盐 | ≤0.01% | ≤0.015% | ≤0.04% | - | 合格 | - |
碳酸盐与碳酸铵盐 | - | - | 合格 | - | 合格 | - |
钙盐 | ≤0.005% | ≤0.002% | ≤0.01% | - | 合格 | - |
镁盐 | - | - | ≤0.01% | - | - | - |
铁 | ≤0.0003% | ≤0.02% | ≤0.003% | - | - | - |
铵盐 | - | - | ≤0.001% | - | 合格 | - |
砷 | - | - | ≤0.0005% | 合格 | ≤5ppm | 合格 |
重金属 | - | - | ≤0.001% | ≤20ppm | ≤25ppm | ≤20ppm |
盐酸不溶物 | ≤0.005% | ≤0.02% | - | - | - | - |
磷酸盐 | ≤0.002% | ≤0.005% | - | - | - | - |
铜 | ≤0.001% | ≤0.0005% | - | - | - | - |
铅 | ≤0.001% | ≤0.002% | - | - | - | - |
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