One of those at the Sedona Conference who saw opportunity, rather than insoluble problems, was my thesis advisor, Don Burnett. He recognised that, as yet, there was no rigorous beta-track analytical technique and, being a good nuclear and analytical chemist, he proposed to devise one. Don’s view was that the beta-track method had been used, but had never been validated. That became an important part of my Ph.D. thesis (Jones and Burnett, 1981). Don has probably not gotten the credit he deserves for jumping into the trace element partitioning arena.