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Questions and Answers
What is the term used to describe the process when ions are exchanged from the liquid to the resin?
What is the term used to describe the process when ions are exchanged from the liquid to the resin?
- Depletion
- Deactivation
- Exhaustion (correct)
- Saturation
What type of groups are covalently bound to the packing in anion exchangers?
What type of groups are covalently bound to the packing in anion exchangers?
- Positively charged (correct)
- Hydrophobic
- Negatively charged
- Neutral
What are cation exchangers designed to bind?
What are cation exchangers designed to bind?
- Solute cations (correct)
- Neutral solutes
- Hydrophobic solutes
- Solute anions
What is the purpose of the regeneration step in ion exchange chromatography?
What is the purpose of the regeneration step in ion exchange chromatography?
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What is the result of using methacrylic acid instead of styrene in the polymerization process for ion exchange resins?
What is the result of using methacrylic acid instead of styrene in the polymerization process for ion exchange resins?
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Study Notes
Ion Exchange Chromatography
- Ion exchange is the term used to describe the process when ions are exchanged from the liquid to the resin.
Anion Exchangers
- Quaternary ammonium groups are covalently bound to the packing in anion exchangers.
Cation Exchangers
- Cation exchangers are designed to bind positively charged ions (cations).
Regeneration Step
- The purpose of the regeneration step in ion exchange chromatography is to remove the bounded ions and reactivate the resin.
Ion Exchange Resins
- Using methacrylic acid instead of styrene in the polymerization process for ion exchange resins results in resins with different properties.
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