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The Duquenois–Levine test is a simple chemical color reaction test initially developed in the 1930s by Pierre Duquénois. To administer the test, a user simply has to mix the chemicals with a particle of the suspected substance; if the chemicals turn purple, this indicates the possibility of marijuana.
The test was initially developed in the 1930s by the French medical biochemist Pierre Duquénois (1904–1986) and was adopted in the 1950s by the United Nations as the preferred test for cannabis. The test was originally claimed to be specific to cannabis. After several modifications, it became known as the Duquenois–Levine test.
Does that product contain an illegal level of THC? This will help you find out.
The 4/20 holiday is this weekend, and if you choose to celebrate, please do so safely. But also, be wary of coming drug tests.
Cannabis product testing is a form of product testing analyzes the quality of cannabis extracts, edibles, and THC and CBD levels in an emergent consumer market eager to sell adult use products. [1] Analytical chemistry and microbiology laboratories are important entities in consumer protection.
If your job prohibits marijuana use or wants to drug test you to see if you have weed in your system, they will be well within their rights even though Missouri voted to pass Amendment 3 on Tuesday.
NJ legal weed: Find your nearest dispensary for recreational, medical marijuana. If drivers test positive to 3 nanograms or more of THC — the cannabis component that gets people high — they ...
Two main questions arise in the law surrounding driving after having ingested cannabis: (1) whether cannabis actually impairs driving ability, and (2) whether the common practice of testing for THC (the main psychoactive substance in cannabis) is a reliable means to measure impairment. On the first question, studies are mixed.