chromatography is used with reagent testing to separate substances before testing and prevent this "masking" effect. Ehrlich reagent can only detect drugs with...

chemistry, a reagent (/riˈeɪdʒənt/ ree-AY-jənt) or analytical reagent is a substance or compound added to a system to cause a chemical reaction, or test if one...

solution is a chemical reagent used to differentiate between water-soluble carbohydrate and ketone (>C=O) functional groups, and as a test for reducing sugars...

URL Home pill testing doesn't show up PMA in a pill in YouTube. "Reagent Testing Instructions". Retrieved 21 December 2016. "Reagent Testing Results App"...

shelf life. 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...

Benedict's reagent (often called Benedict's qualitative solution or Benedict's solution) is a chemical reagent and complex mixture of sodium carbonate...

Ehrlich's reagent or Ehrlich reagent is a reagent containing p-dimethylaminobenzaldehyde (DMAB) and thus can act as an indicator to presumptively identify...

Tollens' reagent (chemical formula Ag ( NH 3 ) 2 OH {\displaystyle {\ce {Ag(NH3)2OH}}} ) is a chemical reagent used to distinguish between aldehydes and...

then incubated with anti-human globulin ("Coombs reagent"). If the red cells then agglutinate, the test is positive, a visual indication that antibodies...

the Beer–Lambert law. Despite its name, the reagent does not in fact contain biuret [(H2N−CO−)2NH]. The test is named so because it also gives a positive...