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  2. Kastle–Meyer test - Wikipedia

    en.wikipedia.org/wiki/KastleMeyer_test

    The KastleMeyer test is a presumptive blood test, first described in 1903, in which the chemical indicator phenolphthalein is used to detect the possible presence of hemoglobin. It relies on the peroxidase -like activity of hemoglobin in blood to catalyze the oxidation of phenolphthalin (the colorless reduced form of phenolphthalein) into ...

  3. Presumptive and confirmatory tests - Wikipedia

    en.wikipedia.org/wiki/Presumptive_and...

    Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.

  4. Forensic serology - Wikipedia

    en.wikipedia.org/wiki/Forensic_serology

    As with all presumptive tests, this technique can produce false positive results due to metals and strong chemicals, such as bleach, that will also react. Another common presumptive test is the Kastle-Meyer or Phenolphthalein test. This is a catalytic test that detects the heme group in blood that transports oxygen and carbon dioxide. [5]

  5. Phenolphthalein - Wikipedia

    en.wikipedia.org/wiki/Phenolphthalein

    A reduced form of phenolphthalein, phenolphthalin, which is colorless, is used in a test to identify substances thought to contain blood, commonly known as the KastleMeyer test. A dry sample is collected with a swab or filter paper.

  6. Lunchly criticisms, mold allegations prompt response from ...

    www.aol.com/lunchly-criticisms-mold-allegations...

    Nutrition criticisms and allegations of mold prompted Logan Paul to respond to the controversy surrounding his, KSI's and MrBeast's Lunchly company.

  7. Chemical test - Wikipedia

    en.wikipedia.org/wiki/Chemical_test

    Clinistrips quantitatively test for sugar in urine; The Kastle-Meyer test tests for the presence of hemoglobin; Salicylate testing is a category of drug testing that is focused on detecting salicylates such as acetylsalicylic acid for either biochemical or medical purposes. The Phadebas test tests for the presence of saliva for forensic purposes

  8. What to Know About the Condition That Affects RFK Jr.'s Voice

    www.aol.com/know-condition-affects-rfk-jr...

    Robert F. Kennedy, Jr., President Trump’s nominee to lead the U.S. Department of Health and Human Services, speaks with a raspy quiver in his voice. That’s because he has spasmodic dysphonia ...

  9. Category:Biochemistry detection reactions - Wikipedia

    en.wikipedia.org/wiki/Category:Biochemistry...

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