TY  - JOUR
PY  - 1983//
TI  - Analysis of the major metabolite of delta 9-tetrahydrocannabinol in urine II. A HPLC procedure
JO  - Journal of analytical toxicology
A1  - Wells, K. E.
A1  - Dimson, P. A.
A1  - Jones, A. B.
A1  - ElSohly, H. N.
A1  - ElSohly, M. A.
SP  - 262
EP  - 264
VL  - 7
IS  - 6
N2  - A high performance liquid chromatographic (HPLC) procedure was developed for the analysis of 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in urine. Hydrolyzed urine samples were cleaned up using Bond-Elut columns. 11-Nor-cannabinol-9-carboxylic acid was used as internal standard. The analysis was carried out using a C8 reversed-phase column with acetonitrile:50 mM phosphoric acid (65:35) as the solvent. Detection was done by ultraviolet detector at 214 nm. The minimum detectable level of 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid was 25 ng/mL.<p /> <p>Language: en</p>
LA  - en
SN  - 0146-4760
UR  - http://dx.doi.org/
ID  - ref1
ER  -