L-丙氨酸
分子量:89.09
CAS号:56-41-7
L-丙氨酸 |
AJI92 |
USP40 |
USP32 |
GB25543-2010 |
性状 |
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 |
鉴别 |
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 |
5.7~6.7 |
5.5~7.0 |
5.5~7.0 |
5.7~6.7 |
透光率 |
≥98.0% |
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--- |
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干燥失重 |
≤0.20% |
≤0.2% |
≤0.2% |
≤0.20% |
炽灼残渣 |
≤0.10% |
≤0. 15% |
≤0.1% |
≤0.20% |
氯化物 |
≤0.020% |
≤0.05% |
≤0.05% |
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重金属 |
≤10ppm |
≤15ppm |
≤15ppm |
≤10ppm |
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 |
--- |
--- |
--- |
--- |
砷盐 |
≤1ppm |
--- |
--- |
≤1ppm |
铵盐 |
≤0.02% |
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--- |
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其他氨基酸 |
应符合规定 |
应符合规定 |
--- |
--- |
热源 |
应符合规定 |
-- |
--- |
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比旋度 |
+14.3°~+15.2° |
﹢13.7°~﹢15.1° |
﹢13.7°~﹢15.1° |
+13.5~+15.5 |
联系我们
石家庄海天氨基酸有限公司
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