Activation of sulfonate ester based matrix metalloproteinase proinhibitors by hydrogen peroxide

Spectrofluorimetric determination of tan

Spectrofluorimetric determination of tannins based on their activative effect on the Cu(II) catalytic oxidation of rhodamine 6G by hydrogen peroxide

✍ Suling Feng; Anna Tang; Juhui Jiang; Jing Fan 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 84 KB

A simple and highly sensitive kinetic fluorimetric method is proposed for the determination of trace tannins, based on the activation of tannins on the oxidation of rhodamine 6G (Rh 6G) by hydrogen peroxide catalyzed by Cu(II) ion. The calibration graph was rectilinear in the range 0.08-1.28 mg l -1