O estilo minimalista ousado da francesa Malika Favre
Removing fluorescein from the organic phase. During the reaction an amide of fluorescein was made what doesn’t have a color and it does not fluoresces under these conditions. So hopefully, the transparency of the upper layer means something good. The bottom layer is a dilute (1M) sodium hydroxide solution what reacts with the fluorescein to form the highly fluorescent fluoriescein sodium salt what produces this intense green color in the aqueous phase.