The hydrochloride and hydro iodide salts of quinine do not respond to this fluorescence test. WHY ?

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Steven Collins Njonté Wouamba

The fluorescence test depends on the wavelength of the radiation used. what is the maximum one length you are using?

Safia Taleb

Please specify the wavelength value used!

Hany Samy

Fluorescence test: Solution of the alkaloid in oxygenated acids (e.g H2SO4, HNO3 or phosphoric acid) to give blue fluorescence (+ ve with quinine and quinidine).

Try adding dil. H2SO4