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HT Histotechnician

Category - Staining

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The addition of this substance will help improve the ability of the carmine solution to stain for mucin. What is this substance?

Aluminum chloride
Aluminum hydroxide
Potassium chloride
Ammonium chloride

Explanation

Answer: B - Aluminum hydroxide

The addition of aluminum hydroxide will help improve the ability of the carmine solution to stain for mucin. This aluminum salt will form a chelate compound with carmine, which then binds to the mucin-containing tissue. Other choices do not help improve the ability of the carmine solution to stain for mucin.

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