L-酪氨酸
包装: 25kg公斤牛皮纸袋或桶装
标准: AJI92， AJI97， EP， USP30， USP32，USP36
COA ( 2 种规格 ):
检测项目 ITEM | 参照标准 USP31 |
旋光 SPECIFIC ROTATION | -9.8~-11.2 |
氯化物 CHLORIDE | ≤0.04% |
硫酸盐 SULFATE | ≤0.04% |
铁 IRON | ≤30ppm |
重金属 HEAVY METALS | ≤15ppm |
干燥失重 LOSS ON DRYING | ≤0.30% |
燃烧残渣 RESIDUE ON IGNITION | ≤0.40% |
含量 ASSAY | 98.5~101.5% |
色谱分析纯度 CHROMATOGRAPHIC PURITY | Not more than 0.5% of any individual impurity is found, Not more than 0.2% of total impurities is found |
有机挥化性杂质 Organic Volatile impurities | Meets the requirements |
检测项目 ITEM | 参照标准 AJI92 |
比旋光度 SPECIFIC ROTATION | -11.3º~-12.1º |
透光率 STATE OF SOLUTION | ≥95% |
氯化物 CHLORIDE | ≤0.02% |
铵盐 AMMONIUM | ≤0.02% |
硫酸盐 SULFATE | ≤0.02% |
铁盐 IRON | ≤10ppm |
重金属 HEAVY METALS | ≤10ppm |
砷盐 ARSENIC | ≤1.0ppm |
其它氨基酸 OTHER AMINO ACIDS | CHROMATOGRAPHICALLY NOT DETECTABLE |
干燥失重 LOSS ON DRYING | ≤0.20% |
燃烧残渣 RESIDUE ON IGNITION | ≤0.10% |
含量 ASSAY | 98.5~100.5% |
酸度PH | 5.0~6.5 |