Solvents for Preparative Chromatography
Solvents for preparative chromatography are high-purity solvents, in which the non-volatile substances, acids, and absorbance are suppressed at low levels in order to obtain the precious target component with high purity and high yield.
Example of Specification
Distilled Water
| Requirement | Specification |
|---|---|
| Appearance | Colorless and clear liquid |
| Density (20℃) | 0.997 - 0.999 g/mL |
| Refractive index nD20 | 1.332 - 1.334 |
| Absorbance | 210 nm: max. 0.03 220 - 400 nm: max. 0.01 |
| Residue after evaporation | max. 5 ppm |
| pH at 25℃ | 5.0 - 7.5 |
| Peroxide (as H2O2) | max. 0.5 ppm |
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Product content may differ from the actual image due to minor specification changes etc.