L-盐酸赖氨酸

AJI92

USP32

USP40

GB1903.1-2015

性状

应为白色粉末

白色结晶性粉末

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应为白色结晶或结晶性粉末

气味

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无臭

铅

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≤5.0 mg/kg

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%~100.5%

98.5%~101.5%

98.5%~101.5%

98.5~101.5

pH

5.0~6.0

5.0~6.0

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5.0~6.0

透光率

≥98.0%

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≥95.0%

干燥失重

≤0.40%

≤0.4%

≤0.4%

≤1.0%

炽灼残渣

≤0.10%

≤0. 1%

≤0. 1%

≤0.2%

含氯量

19.12% ~19.51%

19.0%-19.6%

19.0%-19.6%

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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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砷盐

≤1ppm

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≤1ppm

铵盐

≤0.02%

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≤0.02%

其他氨基酸

应符合规定

应符合规定

应符合规定

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热源

应符合规定

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有机挥发杂质

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应符合规定

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比旋度

+20.7°~ +21.5°

+20.4~+21.4°

+20.4~+21.4°

+20.3~+21.5