Polyoxometalates as promising enzyme mimics for the sensitive detection of hydrogen peroxide by fluorometric method

A fluorescence quenching method for sensitive detection of hydrogen peroxide of CdTe QDs with Na10[α-SiW9O34] as catalyst. Under the optimal reaction conditions, a linear correlation was established between fluorescence intensity ratio I0/I and concentration of H2O2 from 7.8 × 10−9 to 2.5 × 10−7 mol/L with a detection limit of 3.8 × 10−9 mol/L.219