技术规格说明书
产品名称
L-丝氨酸 BioUltra, ≥99.5% (NT)
产品编号
84959
产品品牌
sigma
化学文摘社编号
56-45-1
分子量
105.09
Test皿 | 规格 |
|---|---|
| APPEARANCE (COLOR) | Colorless or White |
| APPEARANCE (FORM) | Powder or Crystals |
| TITRATION (NT) HCLO4 0.1M | 99.5 - 100.5 % |
| THIN LAYER CHROMATOGR. | CORRESPONDS TO STANDARD |
| SPECIFIC ROTATION (20/D) | 13.0 - 14.0 Degrees |
| CONCENTRATION | C=5 IN HYDROCHLORIC ACID 5M |
| LOSS ON DRYING | ≤ 0.1 % |
| SULFATED ASH | ≤ 0.1 % |
| INFRARED SPECTRUM | CONFORMS TO STRUCTURE |
| METAL TRACE ANALYSIS (ICP) | CORRESPONDS TO REQUIREMENTS |
| ALUMINIUM (ICP) | ≤ 5 mg/kg |
| BARIUM (ICP) | ≤ 5 mg/kg |
| BISMUTH (ICP) | ≤ 5 mg/kg |
| CALCIUM (ICP) | ≤ 50 mg/kg |
| CADMIUM (ICP) | ≤ 5 mg/kg |
| COBALT (ICP) | ≤ 5 mg/kg |
| CHROMIUM (ICP) | ≤ 5 mg/kg |
| COPPER (ICP) | ≤ 5 mg/kg |
| IRON (ICP) | ≤ 5 mg/kg |
| POTASSIUM (ICP) | ≤ 50 mg/kg |
| LITHIUM (ICP) | ≤ 5 mg/kg |
| MAGNESIUM (ICP) | ≤ 5 mg/kg |
| MANGANESE (ICP) | ≤ 5 mg/kg |
| MOLYBDENUM (ICP) | ≤ 5 mg/kg |
| SODIUM (ICP) | ≤ 50 mg/kg |
| NICKEL (ICP) | ≤ 5 mg/kg |
| STRONTIUM (ICP) | ≤ 5 mg/kg |
| ZINC (ICP) | ≤ 5 mg/kg |
| TOTAL SULFUR AS SO4 (ICP) | ≤ 50 mg/kg |
| CHLORIDE (CL) | ≤ 50 mg/kg |
| ION CHROMATOGRAPHY (NH4+) | ≤ 100 mg/kg |
| SOLUBILITY (METHOD) | 1.576 G IN 30 ML 1M HCL (0.5 M) |
| APPEARANCE (SOLUTION) | CLEAR COLORLESS |
| RESIDUE (FILTER TEST) | NO RESIDUE |
| UV - ABS. AT 260 NM | ≤ 0.05 |
| UV - ABS. AT 280 NM | ≤ 0.05 |
| RECOMMENDED RETEST PERIOD | 42 MONTHS |