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List of reagent testing color charts. It is advised to check the references for photos of reaction results. [1] Reagent testers might show the colour of the desired substance while not showing a different colour for a more dangerous additive. [2] For this reason it is essential to use multiple different tests to show all adulterants.
Mecke reagent. The Mecke reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of selenous acid and concentrated sulfuric acid, [1] which is dripped onto the substance being tested. The United States Department of Justice method for producing the reagent is the addition ...
Lüscher color test. Not to be confused with Von Luschan's chromatic scale. The Lüscher color test is a psychological test invented by Max Lüscher in Basel, Switzerland, first published in 1947 in German and first translated to English in 1969. The simplest form of the test instructs a subject to order a series of 8 colors in order of preference.
Marquis reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of formaldehyde and concentrated sulfuric acid, which is dripped onto the substance being tested. The United States Department of Justice method for producing the reagent is the addition of 100 mL of ...
At long last: The premiere of The Color Purple is upon us. While the movie isn’t hitting theaters quite yet, Oprah, the cast, and more joined together for an official red—well, purple—carpet ...
Froehde reagent. The Froehde reagent is used as a simple spot-test to presumptively identify alkaloids, especially opioids, as well as other compounds. It is composed of a mixture of molybdic acid or a molybdate salt dissolved in hot, concentrated sulfuric acid, which is then dripped onto the substance being tested.
Purple Aki. Akinwale Oluwafolajimi Oluwatope Arobieke (born 15 July 1961), commonly known as Purple Aki, is a British man known for his criminal convictions for harassment. He has been convicted for touching and measuring the muscles of young men and asking them to squat his body weight.
Synonyms. FALANT. Purpose. screens for red-green deficiencies. The Farnsworth Lantern Test, or FALANT, is a color vision test originally developed specifically to screen sailors for tasks requiring color vision, such as identifying signal lights at night. It screens for red-green deficiencies, but not the much rarer blue color deficiency.
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