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  2. Chen-Kao reaction - Wikipedia

    en.wikipedia.org/wiki/Chen-Kao_reaction

    The reaction is used in spot tests and is also known as Chen-Kao test (or simply as Chen, Test T in UN Precursor Test Kit). The test is often used to distinguish ephedrine, pseudoephedrine, norephedrine , cathinone and methcathinone from amphetamine and methamphetamine , which do not react with Chen’s test reagent.

  3. Reagent testing - Wikipedia

    en.wikipedia.org/wiki/Reagent_testing

    Reagent testing is one of the processes used to identify substances contained within a pill, usually illicit substances. With the increased prevalence of drugs being available in their pure forms, the terms "drug checking" or "pill testing" [1] may also be used, although these terms usually refer to testing with a wider variety of techniques covered by drug checking.

  4. Ehrlich's reagent - Wikipedia

    en.wikipedia.org/wiki/Ehrlich's_reagent

    It gives a negative test-result for 25I-NBOMe and many other non-indole-related psychoactives. The reagent will also give a positive result for opium, because of the presence of tryptophan in natural opium. [3] Pyridoxine, present in vitamin supplements, can give positive results to the Ehrlich test, showing a pink colour change. [4]

  5. Drug test - Wikipedia

    en.wikipedia.org/wiki/Drug_test

    A drug test (also often toxicology screen or tox screen) is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva—to determine the presence or absence of specified parent drugs or their metabolites.

  6. Duquenois–Levine reagent - Wikipedia

    en.wikipedia.org/wiki/Duquenois–Levine_reagent

    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 ...

  7. Category:Drug testing reagents - Wikipedia

    en.wikipedia.org/wiki/Category:Drug_testing_reagents

    Pages in category "Drug testing reagents" The following 26 pages are in this category, out of 26 total. This list may not reflect recent changes. C. Chen-Kao reaction;

  8. Simon's reagent - Wikipedia

    en.wikipedia.org/wiki/Simon's_reagent

    Simon's reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It reacts with secondary amines like MDMA and methamphetamine to give a blue solution. Uses

  9. Mecke reagent - Wikipedia

    en.wikipedia.org/wiki/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.