You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following test is done to detect the presence of urobilinogen? and explain in detail?
Ehrlich's aldehyde test: Ehlich's aldehyde reagent consists of para dimethyl amino benzaldehyde in acid solution. Equal volumes of urine and Ehrlich's reagent are mixed. Formation of pink colour indicates the presence of urobilinogen. Other Options:- Test Detects Guthrie test Screening of phenylketonuria Fouchet's test bile pigments (Bilirubin) in urine Alcian blue spot test mucopolysaccharides in urine Additional information: Watson-Schwaz testis a qualitative screening test for the detection and differentiation of urobilinogen and porphobilinogen. Step 1: Urine + Ehrlich reagent + Sodium acetate - Pink or red colour - Positive test - Urobilinogen or Porphobilinogen present. Step 2:Above test solution + Chloroform Step 3:Pink/Red layer + Butanol Note:If the pink color develops in the first step, then continue fuher. In the second step, if the colour develops in the aqueous layer, then proceed with the addition of butanol.