ATTENTION has been directed by Schmähl and Schneider1 and Druckrey and Schmähl2 to the decrease in intensity of fluorescence which occurs when a benzene solution of fresh cigarette smoke products is exposed to light. This decrease in fluorescence indicates one obvious difference between the smoke, which will contain unchanged products when inhaled by the smoker, and any solution of the smoke products which has been exposed to light and which is then used for chemical or biological tests.
Schmähl, D., and Schneider, H., Arzneimittel-Forsch., 5, 348 (1955).
Druckrey, H., and Schmähl, D., Science, 122, 421 (1955).
Greene, C. R., Science, 123, 227 (1956).
Commoner, B., Townsend, J., and Pake, G. E., Nature, 174, 689 (1954).
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JOHNSTON, H. Decrease in Fluorescence Intensity of a Solution of Fresh Cigarette Smoke Products on Exposure to Light. Nature 180, 1350 (1957). https://doi.org/10.1038/1801350a0
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