The impact of several urine adulterants on samples that test positive for Tetrahydrocannabinol using screening tests
Amir Eid,
Manar Ahmad,
Dalia Ghareeb
et al.
Abstract:Adulteration, a process that involves manipulating a urine specimen with chemical adulterants to obtain a false negative test result. Aim: Assessment of effects of some adulterants on urinary drug testing of tetrahydrocannabinol (THC), comparing effects on two screening methods immunoassay and thin layer chromatography (TLC). Subjects and methods: urine samples first were test positive for THC by GC/MS in the toxicology lab at Beni-Suef University. THC positive urine samples were then adulterated by water, HCL… Show more
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