L-異亮氨酸|73-32-5生產(chǎn)廠家

檢測項目Item

AJI92

USP24

含量Assay

98.5～101.0%

98.5～101.5%

酸度pH

5.5～6.5

5.5～7.0

比旋度Specific rotation[a]D20

     +39.5～+41.5°

  +38.9～+41.8°

溶液的透光度Transmittance(T430)

≥98.0%

氯化物Chloride(Cl)

≤0.02%

≤0.05%

銨鹽Ammonium(NH4)

       ≤0.020%

硫酸鹽Sulfate(SO4)

≤0.02%

≤0.03%

鐵鹽Iron(Fe)

≤10ppm

≤30ppm

重金屬Heavy metals(Pb)

≤10ppm

≤15ppm

砷鹽Arsenic

≤1ppm

≤1.5ppm

干燥失重Loss on drying

≤0.2%

≤0.3%

熾灼殘渣Residue on ignition

≤0.1%

≤0.3%

有機揮發(fā)物Organic volatile impurities

Conforms