Comment on “Virtues and limitations of Pittsburgh green for ozone detection” by C. C. Beltrán, E. A. Palmer, B. R. Buckley and F. Iza, Chem. Commun., 2015, 51, 1579
We previously developed Pittsburgh Green homoallyl ether to quantify trace ozone. Independently, problems were reported when the method was used for excess ozone. Here, we discuss the origin of the reported problems and demonstrate that when this method is used according to our previous report, no problems occur.