File Name : fig. s1.tif

Caption : fig. s1: chemical structure of mirabegron. 

File Name : fig. s2.tif

Caption : fig. s2: (a) profile of the potential in mv/- log mir molar concentration using liquid membrane sensor i [1.56 x10-5 m - 1x10-3 m]. (b) profile of the potential in mv/- log mir molar concentration using sensor ii, sensor iii [3.91x10-6 m - 1x10-3 m], and sensor ⅳ [1.9 x10-6 m - 1x10-3 m].