Citation

Nakamura GR, Meeks RD, Stall WJ. J. Forensic Sci. 1990; 35(4): 792-796.

Affiliation

U.S. Army Criminal Investigation Laboratory-Pacific, APO San Francisco, CA.

Copyright

(Copyright © 1990, American Society for Testing and Materials, Publisher John Wiley and Sons)

DOI

unavailable

PMID

2167920

Abstract

A procedure has been developed to extract and recover minute amounts of delta-9-carboxytetrahydrocannabinol (THC-COOH) from urine. A new non-isotopic internal standard is introduced to permit a chromatographic assay of the metabolite. The method affords a 91% recovery of 20 ng/mL of the THC-COOH acid from spiked urine with the assurance of a 3.8% coefficient of variation.

Language: en