Response to harley and fisenne

摘要

We thank Harley and Fisenne for their comments regarding our study. Concerning the first point of their comments, we would like to point out that the paragraph from our article is misquoted in their letter: Watson and Strom (2011) states the solution was "held for 5 h to allow a buildup of the ~(222)Rn decay product" (emphasis added). Harley and Fisenne's letter says "~(226)Ra." It is possible this misprint is the basis for part of their first point.