What is an ion pair example?
Ion pairs occur in concentrated solutions of electrolytes (substances that conduct electricity when dissolved or molten). Thus, in concentrated solutions of sodium chloride, some positive sodium ions, Na+, and some negative chloride ions, Cl-, are paired together.
How do ion pairing agents work?
The ionic samples form an ion-pair with ion-pair reagents in the mobile phase to become electrically neutral. The increase in hydrophobic character of the ion-pair results in a greater affinity for the reverse stationary phase and leads to sample resolution.
What is an ion pairing agent in HPLC?
Ion-pairing agents are compounds that contain both an ionic functional group and a hydrophobic portion, such as a hydrocarbon chain.
What is ion pairing in solution?
Ion pairing describes the (partial) association of oppositely charged ions in electrolyte solutions to form distinct chemical species called ion pairs.
What is ion pair complexes?
Known also as ionic associations or ionic association complexes , ion pairs are pairs of oppositely charged ions held together by Coulomb attraction without formation of a covalent bond [1].
What is ion pair chromatography?
Ion pair chromatography (IPC) is one technique used to separate charged substances. It is widely used to selectively analyze acids and bases, particularly with reverse phase chromatography.
What is the role of ion-pair reagent in mobile phase?
The purpose of adding an ion pair reagent to the mobile phase is usually to change the retention time of ionic analytes.
What is the role of ion pair reagent in mobile phase?
What is solvent separated ion pair?
See ion pair. ion pair:A pair of oppositely charged ions held together by Coulomb attraction without formation of a covalent bond. Experimentally, an ion pair behaves as one unit in determining conductivity, kinetic behaviour, osmotic properties, etc.
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