Division 5.3.4 Observe under the light from a UV lamp adjusted to a wavelength of 360 nm. Quinine appears as a fluorescent intense blue spot.
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By way of example the table below gives the values of the RF of the main alkaloids related to quinine when developed with solvent 3.2.
| Alkaloid | RF |
|---|---|
| Quinine | 0,20 |
| Quinidine | 0,29 |
| Cinchonine | 0,33 |
| Cinchonidine | 0,27 |
| Hydroquinidine | 0,17 |