Ads by Google
| Product name | Methanol | Grade | HPLC | Batch no | 6508AZ02 |
| Ref.stantard | Q/ASL004-2009 | Packing | 4 L bottle | Report date | 2010.3.22 |
| Item | Standard | Results | |||
| Appearance | Clear,Colorless | Clear,Colorless | |||
| Color(APHA) | Max 10 | 5 | |||
| Assay( by GC) % | Min 99.9 | ≥99.9 | |||
| Water(by KF) % | Max 300 | 64 | |||
| Evaporation Residue, mg/kg | Max 2.0 | 0.4 | |||
| Titrable Acid. meq/g | Max 0.0003 | 0.0001 | |||
| Titrable Base, meq/g | Max 0.0002 | 0.00003 | |||
| Solubility in H2O | Passes test | passes test | |||
| Acetone mg/kg | Max 10 | 0 | |||
| UV Absorbance,(1.00-cm cell vs.water) | |||||
| at 225 nm | Max 0.15 | 0.1323 | |||
| at 254 nm | Max 0.01 | 0.0066 | |||
| at 400 nm | Max 0.01 | 0.0000 | |||
| UV Cut-off nm | Max 205 | 205 | |||
| Gradient Elution Test (a,u) | |||||
| at 254 nm | Max 0.002 | 0.001 | |||
| Fluorescence Trace impurities, in ppb,(as Quinine Base) | |||||
| at 450 nm | Max 0.3 | 0.1 | |||
| Emission Maximum for impuritlies | Max 1.0 | 0.4 | |||
HPLC methanol