Question

which chromatography type is based on electrical charge?

select one:
a. ion-exchange
b. size exclusion
c. affinity
d. hydrophobic interaction

Explanation:

Identify separation mechanism of each chromatography type

• Ion-exchange chromatography separates molecules based on their net surface charge.
• Size exclusion chromatography separates molecules based on their size or molecular weight.
• Affinity chromatography separates molecules based on highly specific biological binding interactions.
• Hydrophobic interaction chromatography separates molecules based on their surface hydrophobicity.

Match mechanism to the question prompt

• The question asks for the chromatography type based on electrical charge.
• This matches ion-exchange chromatography.

Answer:

• a. Ion-exchange (Correct answer)
• b. Size exclusion
• c. Affinity
• d. Hydrophobic interaction