Use of mobile phase 18-crown-6 to improve peak resolution between mono- and divalent metal and amine cations in ion chromatography.
Richens DA, Simpson D, Peterson S, McGinn A, Lamb JD. Use of mobile phase 18-crown-6 to improve peak resolution between mono- and divalent metal and amine cations in ion chromatography. J Chromatogr A. 2003 Oct 24; 1016(2):155-64.