Jan 22, 2010 · Reagents. TPTZ (2,4,6-tri-pyridyl-s-triazine) was obtained from Fluka Chemie AG (Deisenhofen, Switzerland), sodium acetate trihydrate and FeSO 4 × 7 H 2 O from Riedel-deHaën AG (Seelze, Germany), acetic acid and hydrochloric acid from Merck (Darmstadt, Germany), FeCl 3 × 6H 2 O from BDH Laboratory Supplies (Dorset, England).
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