Does the pH value has an influence on the retention time in anion IC?

The retention time for anions of weak acids increases when the pH of the eluent increases in the vicinity of the pKa of the acid. Due to the sample ion charge this is controlled by the pH of the eluent ⇒ the more basic the eluent, the stronger the negative charge.

We separate molecules and unite people.

Based in Berlin, KNAUER has been serving the sciences since 1962. We develop and manufacture scientific instruments of superior quality for liquid chromatography systems and components, including:

Analytical HPLC / UHPLC
Preparative HPLC
Fast protein liquid chromatography (FPLC)
Multi-Column Chromatography / SMB

We are an established partner in science. Today and in the future.​​​​​​

Do you need more information?

Please contact us!

Follow us