A Simple, Rapid, Fluorometric Assay for Dopamine by In Situ Reaction of Boronic Acids and cis-Diol

Figure 3

(a) Fluorescence intensity as a function of pH from 3–12 and (b) the reversibility of the reaction between the boronic acid and DA in pH 6 and 11. The pH of buffer solution was adjusted by HCl or Na₂CO₃.

(a)

(b)