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- Zwikker_reagent abstract "The Zwikker reagent is used as a simple spot-test to presumptively identify barbiturates. 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. Part B consists of 5% pyridine (v/v) in chloroform. One drop of each is added to the substance to be tested and any change in colour is observed.The test turns phenobarbital, pentobarbital and secobarbital light purple. Tea and tobacco turn yellow-green.The test's lack of specificity and tendency to produce false positives means it is not widely used for presumptive drug testing, although it does still play a role as a thin layer chromatography stain.".
- Zwikker_reagent wikiPageID "34914721".
- Zwikker_reagent wikiPageRevisionID "595311738".
- Zwikker_reagent hasPhotoCollection Zwikker_reagent.
- Zwikker_reagent subject Category:Analytical_reagents.
- Zwikker_reagent subject Category:Chemical_tests.
- Zwikker_reagent subject Category:Drug_testing_reagents.
- Zwikker_reagent type Abstraction100002137.
- Zwikker_reagent type ChemicalTests.
- Zwikker_reagent type Cognition100023271.
- Zwikker_reagent type Experiment105798043.
- Zwikker_reagent type HigherCognitiveProcess105770664.
- Zwikker_reagent type Inquiry105797597.
- Zwikker_reagent type ProblemSolving105796750.
- Zwikker_reagent type Process105701363.
- Zwikker_reagent type PsychologicalFeature100023100.
- Zwikker_reagent type Thinking105770926.
- Zwikker_reagent type Trial105799212.
- Zwikker_reagent comment "The Zwikker reagent is used as a simple spot-test to presumptively identify barbiturates. 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. Part B consists of 5% pyridine (v/v) in chloroform. One drop of each is added to the substance to be tested and any change in colour is observed.The test turns phenobarbital, pentobarbital and secobarbital light purple.".
- Zwikker_reagent label "Zwikker reagent".
- Zwikker_reagent sameAs m.0j44f0z.
- Zwikker_reagent sameAs Q8075704.
- Zwikker_reagent sameAs Q8075704.
- Zwikker_reagent sameAs Zwikker_reagent.
- Zwikker_reagent wasDerivedFrom Zwikker_reagent?oldid=595311738.
- Zwikker_reagent isPrimaryTopicOf Zwikker_reagent.