L-脯氨酸

AJI92

USP30

USP40

性状

应为白色结晶或结晶性粉末

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鉴别

应符合规定

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应符合规定

含量

99.0%~101.0%

98.5%~101.5%

98.5%~101.5%

pH

5.9~6.9

5.9~6.9

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透光率

≥98.0%

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干燥失重

≤0.30%

≤0.3%

≤0.4%

炽灼残渣

≤0.10%

≤0.1%

≤0.4%

氯化物

≤0.020%

≤0.05%

≤0.05%

重金属

≤10ppm

≤15ppm

≤15ppm

铁盐

≤10ppm

≤30ppm

≤30ppm

硫酸盐

≤0.020%

≤0.03%

≤0.03%

细菌内毒素

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砷盐

≤1ppm

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铵盐

≤0.02%

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其他氨基酸s

应符合规定

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应符合规定

热源

应符合规定

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比旋度

-84.5°~ -86.0°°

-84.5°~ -86.0°°

-84.3°~ -86.3°°