Semi-quantitative thin-layer mass-screening detection of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid in human urine
✍ Scribed by K.K. Kaistha; R. Tadrus
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 530 KB
- Volume
- 237
- Category
- Article
- ISSN
- 1873-3778
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📜 SIMILAR VOLUMES
A gas chromatographic/mass spectrometric electron impact method is presented for the detection and quantification of 1 l-nor-9-carboxy-A9-tetrahydrocannabinol (THC-COOH) in urine, for use in the confirmation of presump tive results obtained by other techniques. Four extraction procedures, two solid-
A method for the rapid and robust confirmation of 11‐nor‐∆9‐tetrahydrocannabinol‐9‐carboxylic acid (THCA) in urine involving basic hydrolysis with NaOH and direct injection of the hydrolysate in a column‐switching LC‐MS‐MS system was developed and validated. THCA‐d3 was used as internal standard. De