Which of the following is not an ingredient of Schiff reagent?

Prepare for the Histotechnologist Certification Exam with our comprehensive study material. Use flashcards, detailed explanations, and intuitive multiple-choice questions. Boost your test readiness and achieve certification success!

Multiple Choice

Which of the following is not an ingredient of Schiff reagent?

Explanation:
Schiff reagent works by using a colorless form of a dye that reveals its color only in the presence of aldehydes. To make this reagent, basic fuchsin is first treated with hydrochloric acid to bleach it, then reduced with a sulfite (such as sodium metabisulfite) to keep it colorless until it meets aldehyde groups. Ethyl alcohol isn’t part of Schiff reagent’s preparation or composition; the reagent is typically prepared in an aqueous medium. That’s why ethyl alcohol is not an ingredient.

Schiff reagent works by using a colorless form of a dye that reveals its color only in the presence of aldehydes. To make this reagent, basic fuchsin is first treated with hydrochloric acid to bleach it, then reduced with a sulfite (such as sodium metabisulfite) to keep it colorless until it meets aldehyde groups. Ethyl alcohol isn’t part of Schiff reagent’s preparation or composition; the reagent is typically prepared in an aqueous medium. That’s why ethyl alcohol is not an ingredient.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy