Methanol
Orochem’s HPLC grade Methanol is manufactured to the highest specifications to ensure the integrity of your data, maximize sensitivity in your assay and to prolong the life of your equipment. With Orochem’s HPLC Grade Solvents, scientists can expect a consistent, high purity product which is necessary to create reliable Chromatography methods and protocols. Orochem HPLC solvents are lot-to-lot analyzed to meet the high quality specifications for HPLC separations. We control the low levels of peak impurities, residue, water, acidity and alkalinity, the high chemical purity and the UV transmittance; all of which are critical parameters for a successful HPLC application.
Specifications for Methanol
| Product Specification | Limits | Typical Lot Analysis |
| GC-ECD | 5ppt max | 1.3 ppt |
| UV Absorbance | ||
| 400 nm-254 nm | 0.01 max | 0.009 |
| 225 nm | 0.15 max | 0.14 |
| UV cut-off, nm | 205 max | 204 nm |
| Assay (by GC, corrected for water) | 99.8 % min | 99.99 % |
| Fluorescence Trace Impurities | ||
| At 450nm emission | 0.3 ppb max | 0.03 ppb |
| At emission maximum for impurities | 1 ppb max | 0.2 ppb |
| Water max | 0.05 % | 0.008 % |
| Residue After Evaporation | 1 ppm | 0.1 ppm |
| Solubility in water | To pass test | Pass |
| Acetone | 0.001 % | Pass |
| Titrable Acid max | 0.0003meq/g | 0.0002 meq/g |
| Titrable Base max | 0.0001 meq/g | 0.00005 meq/g |
| Gradient Analysis @ 254 nm | 0.002 max | 0.001 |
| Identification ( IR/GC) | To conform | Pass |
| Filtered to 0.2 um max | Per lot | Pass |
Specifications
| Catalog | Description |
| 339ORO/HPLC | Methanol HPLC grade (4ltr/bottle) |
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