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Niwaguchi T, Inoue T. 
“Studies on quantitative in situ fluorometry of lysergic acid diethylamide (LSD) on thin-layer chromatograms”. 
J. Chromatogr.. 1971;59:127-133.
The quantitative in situ fluorometry of LSD on thin-layer chromatograms was investigated. Reproducibilities for the range 0.1 - 2.0 ug of LSD on the same and different chromatograms were examined in both direct and internal standard methods. The linear relationship between fluorescence emission intensity and amount of LSD was found in both methods.

This technique has been applied to the determination of unchanged LSD in the photodecomposition process. It was noted that LSD was easily decomposed by ultraviolet irradiation.
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