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L-组氨酸(L-HISTIDINE buy in Wuxi
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L-组氨酸(L-HISTIDINE

L-组氨酸(L-HISTIDINE

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China, Wuxi
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Description
详细描述:
包装规格:内包装双层聚乙烯薄膜袋,外包装25kg全纸桶
储存:两年
质量标准【Quality Standard】
检测项目Item

AJI92

USP31

含量Assay

99.0~101.0%

98.5~101.5%

酸度pH

7.0~8.5

7.0~8.5

比旋度Specific rotation[a]D020 +12.0°~+12.8°
[a]D025

+12.6°~+14.0°º

溶液的透光度Transmittance(T430)

clear & colorless
≥98.0%

氯化物Chloride(Cl)

≤0.02%

≤0.05%

铵盐Ammonium(NH4)

≤0.02%

硫酸盐Sulfate(SO4)

≤0.02%

≤0.03%

铁盐Iron(Fe)

≤10ppm

≤30ppm

重金属Heavy metals(Pb)

≤10ppm

≤15ppm

砷盐Arsenic

≤1ppm

其他氨基酸Other amino acids

conforms

干燥失重Loss on drying

≤0.20%

≤0.20%

炽灼残渣Residue on ignition

≤0.10%

≤0.40%

有机挥发物
Organic volatile impurities

conforms

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L-组氨酸(L-HISTIDINE
L-组氨酸(L-HISTIDINE
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