Visualization of chromatography columns by n.m.r. imaging
Abstract
Three-dimensional n.m.r. tomography at 80 MHz has been used to image the location of copper(II) ions on the ‘Chelating-Sepharose-6B’ adsorbant of an ion-exchange chromatography column; the spin–lattice relaxation rates for water on the column are: free water, 5 × 10–1 s–1; water–gel, 6 × 10–1 s–1; water–copper(II), 16 s–1.