Abstract:
:Gas chromatographic-mass spectrometric (GC-MS) quantitation of 25 cannabis sed oils determined delta 9-tetrahydrocannabinol (THC) concentrations from 3 to 1500 micrograms/g oil. In a pilot study, the morning urine of six volunteers who had ingested 11 or 22 g of the oil, which contained the highest THC content (1500 micrograms/g), was collected for six days. The urine samples were screened by immunoassay, and the content of 11-nor-9-carboxy-delta 9-THC (THCCOOH) was determined by GC-MS. Urine samples were found cannabis positive for up to six days with THCCOOH-equivalent concentrations up to 243 ng/mL. by the Abuscreen OnLine immunoassay and THCCOOH contents from 5 to 431 ng/mL by the GC-MS method. All subjects reported THC-specific psychotropic effects.
journal_name
J Anal Toxicoljournal_title
Journal of analytical toxicologyauthors
Lehmann T,Sager F,Brenneisen Rdoi
10.1093/jat/21.5.373subject
Has Abstractpub_date
1997-09-01 00:00:00pages
373-5issue
5eissn
0146-4760issn
1945-2403journal_volume
21pub_type
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