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It dilutes the urine sample. The idea here is the test kit looks for a quantity of drug per ml of urine. Let's say it wants to see 100 nanograms of drug per ml of urine, and right now you're at 120. If you were to fill the jar half full of urine and half full of water, the effective quantity would now be 60ng/ml, and you'd pass.
The problem with doing it this way is you'd also dilute all the chemicals that are supposed to be in there, like creatine. How we detect dilution is by testing the creatine level. If there isn't enough of it in each ml of urine, we know you diluted your sample.
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∙ 14y ago
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What would adding water to a urine sample given to police for suspected drink driving?
what effect would adding water to a urine sample have on it for suspected drink driving
Why is Red dye put in toilet during urine collection?
so you dont take water from the toilet and adulterate or otherwise water down the urine sample
How much water do you need to drink socanabis is not detected in a urine sample?
You can not drink enough.
How is a strep infection diagnosed from a urine sample?
Strep infection is not diagnosed from a urine sample.
What was the PH trend seen when adding CO2 to the water sample?
As CO2 is added to water, the pH usually decreases.
Will a drug test come out negative if you put a drop of water into the urine?
No, and the test will show show that water was added due to temperature change.
Why is boric acid inside a urine sample bottle?
This is to preserve the urine sample until its tested.
What do they check for in urine to determine if sample is real?
Water, salt, no food colouring and the stale smell.
What is the principle of rotheras test?
The Rothera nitroprusside test looks for ketone bodies in urine. It is done by taking 5 mL of urine and adding ten drops of concentrated ammonia water and solid ammonium sulfate. The sample is then analyzed after 15 minutes. If the sample turns purple, then that means there is acetoacetic acid in the urine.
Does water change color after adding charcoal?
Yes. In chemistry class we had to purify a water sample which was a-color. By adding charcoal and letting it sit over night, it went clear.
What can you find in a sample of urine?
Well i only know two things, you can find if your pregnant or not and if you have a water infection.
Steps to see if adding salt to water change the temperature at which it boils?
To test if adding salt to water increases the boiling point of the water, do the following: boil a sample of pure water until it boils. Measure the temperature at which the pure water boils. Take another sample of pure water and add salt to it, then boil this sample under the same conditions. Measure the temperature at which the salt water boils. If the latter temperature is higher, salt does increase the boiling point of water.
