Bligh, Annie Sim WanAnnie Sim WanBlighDrake, A. F.Sadler, P. J.2022-01-242022-01-241989https://repository.sfu.edu.hk/handle/sfu/2161Sensitive probes are required for studying the biochemistry of Gd(III) contrast agents used in magnetic resonance imaging. We show that complexation of Gd(III) by diethylenetriamine-<i>N,N,N′,N′,N”</i>-pentaacetic acid (DTPA) in aqueous solution can be readily determined from the sharp 4f-f bands for free and bound Gd(III) in the range 270–282 nm, and, with greater sensitivity, from the associated magnetic-circular-dichroic spectra.enjournal article10.1111/j.1432-1033.1989.tb14714.x