“…An ideal neutral EOF marker should be uncharged throughout the whole pH range used, should be easy to detect, and it should not significantly interact with charged components in the BGE. The most commonly used UV absorbing EOF marker in CE is mesityloxide , but phenol , adenosine , acetone, benzene, crotonaldehyde, water, paracetamol , propanone , benzyl alcohol , formamide , acrylamide , acetophenone , and DMSO have also been used. In NACE a solvent dip might be used instead of a neutral marker, although mesityloxide , iodine dissolved in formamide , acetone , anthracene , and water have been applied.…”