urea
Urine would be found in the ureter. The ureters are tubes that carry urine from the kidneys to the bladder.
The two main substances found in urine are water and waste products, such as urea, creatinine, and uric acid.
urea
acetone
The amount of substance that exceeds the tubular maximum will be found in the urine.
Uric acid is a by product of protein digestion and can be found in the urine.
Benzodiazepines: up to 6 weeks with high level use Urine sample results are usually reported as positive (substance is found) or negative (no substance is found).
Phosphorus was the element found in the urine of a scientist named Hennig Brand in 1669. Brand had been trying to extract gold from urine by boiling it down until he obtained a glowing substance, which turned out to be phosphorus.
Urine.
blood
THC-Tetrahydrocannabinol The main psychoactive substance found in the Cannabis plant. It is found in the bloodstream, urine, and in hair follicles. It stay's in the body for 30-40 days.