Lumi-LSD

Dihydro-(+)-lysergic acid diethylamide has been reported to be 1.6 times weaker than LSD. Lumi LSD is inactive. (Abramson 1957). 

Most of the reactions involved in LSD synthesis require anhydrous conditions for good yield, and so protection must be made against moisture during the actual production. Furthermore, the final product must be thoroughly dried to prevent possible formation during storage of the lumi-compounds as mentioned above. 

The intense fluorescence of LSD provides the basis for a very sensitive and selective detection of this compound - 10 pg. The excitation wavelength used is about 325 nm 3 21,28,53 and the emission is measured at 389 nm 3, 400 nm 3 or 420 nm 3 3. Prolonged irradiation - 5 min - of LSD trapped in a scanning fluorimetric detector, results in the conversion into a non-fluorescent lumi-derivative. The disappearance of the fluorescence upon... 

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