Which Is Used to Calibrate an Instrument That Measures Analyte

question 4

Multiple Choice

Which is used to calibrate an instrument that measures analyte in saline?

• A) An unknown patient sample diluted in saline
• B) A reference standard diluted in saline
• C) A positive control diluted in water
• D) A reference standard diluted in water

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Definitions:

Carboxylic Acid

Organic acids characterized by the presence of a carboxyl group (-COOH), found in various biological and industrial chemicals.

pKa

A measure of the acidity of a hydrogen atom in a molecule, indicating the strength of an acid in solution.

Increasing Acidity

A condition or process where the concentration of hydrogen ions in a solution increases, often affecting the substance's pH.

Weak Acids

Acids that only partially dissociate in solution, resulting in a weak conductivity and not completely donating their hydrogen ions.