焦性没食子酸用于吸收氧气已有记载,但用作测定氧气还未见报导。对此,该校养殖科化学教研组进行了大胆的探索。现将他们的测定方法介绍如下:一、焦、磷试剂的配方:称取化学纯的焦性没食子酸1克和化学纯的磷酸三钠9克,分别在40—50℃下干燥二小时,研细混合。此后在光纸上散开,再在40—50℃下干燥半小时,盛入配有橡皮塞、已干燥过的茶色瓶中塞紧,在低温下(最好10℃以下)保存。 Coke gallic acid used to absorb oxygen has been described, but no report has been reported for the determination of oxygen. In response, the school breeding department chemistry teaching and research group conducted a bold exploration. Now their determination method is described as follows: First, coke, phosphorus reagent formula: Weigh chemically pure coke gallic acid and chemically pure 9 grams of trisodium phosphate, were dried at 40-50 ℃ for two hours, Study fine mix. Then spread out on the light paper, and then dry at 40-50 ℃ for half an hour, filled with a rubber stopper, dried brown bottle tightly, at low temperature (preferably below 10 ℃) preservation.