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Fluorescence (FL) derivatization reactions have often been used for the selective determination of bioactive peptides. Herein, a sensitive and selective fluorometric method has been developed for Pro-Gly and Pro-Gly-Pro using a derivatizing reagent 3,4-dihydroxybenzoic acid (3,4-DHBA). In the presence of borate buffer (pH 8.0) and sodium periodate, peptides were reacted with 3,4-DHBA at 37 °C for...
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