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Some of the 80 cannabis brands included in more than 500 pesticide tests. (Dania Maxwell / Los Angeles Times) California's testing requirements for cannabis products contain major gaps .
Cannabis testing is also required in other states, such as California, [16] Oregon, [17] Massachusetts, [18] and Nevada. [19] Washington State added routine pesticide testing and random or investigation-driven heavy metal testing, formerly required only for medical cannabis, to its testing suite for all cannabis on March 2, 2022.
The Duquenois reagent is used in the Rapid Modified Duquenois–Levine test (also known as the simple Rapid Duquenois Test), which is an established screening test for the presence of cannabis. 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 ...
Reordan saw Colorado and Washington legalize recreational cannabis without product safety testing standards, leading her to open Green Leaf Lab in Oregon in 2011 as the first woman-owned analytical cannabis testing laboratory. [6] The lab focused on pesticides and mold in cannabis to ensure the product would be safe for consumers. [6] [7]
After pesticides are found in legal weed products, California regulators scramble to get a testing program in place. Under pressure from weed consumers, California regulators hustle to start ...
A certificate of analysis can be associated with cannabis and cannabis-derived products, attesting to their laboratory analysis for cannabinoids, adulterants, heavy metals, pesticides, mold, etc. This gives consumers "an easy way to review test results from responsible companies selling cannabis and cannabis-infused products". [12]
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A simple and selective GC–MS method for detecting marijuana usage was recently developed by the Robert Koch Institute in Germany. It involves identifying an acid metabolite of tetrahydrocannabinol (THC), the active ingredient in marijuana, in urine samples by employing derivatization in the sample preparation. [23]