Hemp Oil Ingestion Causes Positive Urine Tests for 9-Tetrahydrocannabinol Carboxylic Acid
نویسندگان
چکیده
منابع مشابه
A rapid sample-preparation technique for thin-layer chromatographic analysis for 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in human urine.
In this rapid TLC method of analysis for the urinary cannabinoid metabolite, 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid (THC-COOH), hydrolyzed urine specimens are aspirated through a porous, alkyl-silica extraction layer located along the lower edge of a biphasic thin-layer chromatogram; THC-COOH is simultaneously extracted from the sample and concentrated on the TLC plate for subseq...
متن کاملNovel automated extraction method for quantitative analysis of urinary 11-nor-delta(9)-tetrahydrocannabinol-9-carboxylic acid (THC-COOH).
An automated extraction method for extracting the major urinary metabolite of cannabis, 11-nor-Delta(9)-tetrahydrocannabinol-9-carboxylic acid (THC-COOH) was developed on the four-probe Gilson ASPEC XL4trade mark solid-phase extraction (SPE) system. The method works on liquid-liquid extraction principles but does not require the use of SPE cartridges. The limits of detection and quantitation an...
متن کاملEvaluating the impact of hemp food consumption on workplace drug tests.
Foods containing seeds or oil of the hemp plant (Cannabis sativa L.) are increasingly found in retail stores in the U.S. The presence of delta9-tetrahydrocannabinol (THC) in these foods has raised concern over their impact on the results of workplace drug tests for marijuana. Previous studies have shown that eating hemp foods can cause screening and confirmed positive results in urine specimens...
متن کاملConsumption and quantitation of delta9-tetrahydrocannabinol in commercially available hemp seed oil products.
There has been a recent and significant increase in the use and availability of hemp seed oil products. These products are being marketed as a healthy source of essential omega fatty acids when taken orally. Although the health aspects of these oils is open to debate, the probability that oils derived from the hemp seed will contain delta9-tetrahyrdocannabinol (THC) is noteworthy. Recent additi...
متن کاملEffects of oxidizing adulterants on detection of 11-nor-delta9-THC-9-carboxylic acid in urine.
Bleach, nitrite, chromate, and hydrogen peroxide-peroxidase are effective urine adulterants used by the illicit drug users to conceal marijuana-positive results. Methods for detecting nitrite and chromate are available. Effects of other oxidizing agents that could possibly be used as adulterants and are difficult to detect or measure are presented in this report. Urine samples containing 40 ng/...
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ژورنال
عنوان ژورنال: Journal of Analytical Toxicology
سال: 1997
ISSN: 0146-4760,1945-2403
DOI: 10.1093/jat/21.6.482