Plants - Drugs Mind - Spirit Freedom - Law Arts - Culture Library  
Erowid References Database
Ketchum JS. 
“Detection of LSD”. 
Amer J Psychiat. 1969;125:1447-1448.
In 1964, based on work performed at the medical research laboratory at Edgewood Arsenal, Md., Drs. Aghajanian and Bing published (l) a spectrophotofluoremetric method for the quantitative assessment of LSD in the plasma. They demonstrated, among other things, that exceedingly minute differences in plasma level (as small as one nanogram [ng.]) could be reliably detected with careful technique.

Since two mcg. per kg. (a relatively modest dose by current standards) produces a maximum level in excess of 40 ng. per 10 cc. sample, and since the biological half-life in man is approximately three hours, positive identification of LSD in the blood should be possible for at least 12 hours after ingestion in the great majority of cases.
Comments and Responses to this Article
Submit Comment
[ Cite HTML ]