L-精氨酸
分子量:174.2
CAS号:74-79-3
L-精氨酸 |
AJI92 |
USP32 |
USP40 |
GB28306-2012 |
性状 |
应为白色结晶或结晶性粉末 |
应为白色结晶或结晶性粉末 |
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应为白色结晶或结晶性粉末 |
气味 |
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有特殊性气味Special smell |
鉴别 |
应符合规定 |
应符合规定 |
应符合规定 |
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含量 |
99.0%~101.0% |
98.5%~101.5% |
98.5%~101.5% |
98.5%~101.5% |
pH |
10.5~12.0 |
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10.0~12.0 |
透光率 |
≥98.0% |
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--- |
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干燥失重 |
≤0.5% |
≤0.50% |
≤0.5% |
≤1.0% |
炽灼残渣 |
≤0.10% |
≤0.30% |
≤0. 3% |
≤0. 2% |
氯化物 |
≤0.020% |
≤0.05% |
≤0.05% |
≤0.1% |
重金属 |
≤10ppm |
≤15ppm |
≤15ppm |
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铁盐 |
≤10ppm |
≤30ppm |
≤30ppm |
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硫酸盐 |
≤0.020% |
≤0.03% |
≤0.03% |
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细菌内毒素 |
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--- |
--- |
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砷盐 |
≤1ppm |
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≤2ppm |
铵盐 |
≤0.02% |
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其他氨基酸 |
应符合规定 |
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应符合规定 |
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热源 |
应符合规定 |
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-- |
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色谱纯度 |
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应符合规定 |
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+26.0°~+27.9° |
比旋度 |
+26.9° ~ +27.9° |
+26.3° ~ +27.7° |
+26.3°~+27.7° |
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澄清度与颜色 |
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澄清无色 |
有机挥发物 |
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应符合规定 |
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联系我们
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