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  2. Dille–Koppanyi reagent - Wikipedia

    en.wikipedia.org/wiki/Dille–Koppanyi_reagent

    The Dille–Koppanyi reagent is used as a simple spot-test to presumptively identify barbiturates. It is composed of a mixture of two solutions. It is composed of a mixture of two solutions. Part A is 0.1 g of cobalt(II) acetate dihydrate dissolved in 100 ml of methanol mixed with 0.2 ml of glacial acetic acid .

  3. Zwikker reagent - Wikipedia

    en.wikipedia.org/wiki/Zwikker_reagent

    The Zwikker reagent is used as a simple spot-test to presumptively identify barbiturates. It is composed of a mixture of two solutions. It is composed of a mixture of two solutions. Part A is 0.5 g of copper (II) sulfate in 100 ml of distilled water .

  4. List of reagent testing color charts - Wikipedia

    en.wikipedia.org/wiki/List_of_reagent_testing...

    Reagent test Alcohols: Forms Lucas test in alcohols is a test to differentiate between primary, secondary, and tertiary alcohols. Alkaloids: Forms Froehde Liebermann Mandelin Marquis Mayer's Mecke Simon's: Amines, and amino acids: Forms Folin's: Barbiturates: Class Dille–Koppanyi Zwikker: Benzodiazepines: Class Zimmermann: Phytocannabinoids ...

  5. Diagnosis of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_HIV/AIDS

    The specificity rate given here for the inexpensive enzyme immunoassay screening tests indicates that, in 1,000 HIV test results of healthy individuals, about 15 of these results will be a false positive. Confirming the test result (i.e., by repeating the test, if this option is available) could reduce the ultimate likelihood of a false ...

  6. Pregnant People Can Have a False Positive HIV Test ... - AOL

    www.aol.com/news/could-pregnancy-cause-false...

    Regular testing for HIV is part of pregnancy these days, which bumps up the chance you might get a false-positive result. Experts explain why that can happen. Pregnant People Can Have a False ...

  7. Marquis reagent - Wikipedia

    en.wikipedia.org/wiki/Marquis_reagent

    The above photo shows the positive results of the number 2 Marquis reagent presumptive drug test when used with a sample of opium. It is the primary presumptive test used in Ecstasy reagent testing kits. It can also be used to test for such substances as opiates (e.g. codeine, heroin), and phenethylamines (e.g. 2C-B, mescaline).

  8. PrEP's promise to change the course of HIV has succeeded ...

    www.aol.com/news/preps-promise-change-course-hiv...

    His analysis suggests that if 10,000 similar Black gay and bi men and trans women were followed for one year, approximately 50 would contract HIV if given Apretude, while 200 would test positive ...

  9. US pediatricians group reverses decades-old ban on ...

    www.aol.com/news/us-pediatricians-group-reverses...

    It recognizes that routinely prescribed drugs can reduce the risk of transmitting HIV via breast milk to less than 1%, said Dr. Lisa Abuogi, a ped US pediatricians group reverses decades-old ban ...