

①测定所用器皿要求严格无磷,最好使用新的玻璃器皿或一次性塑料器皿,避免磷污染;
②提取液中含有约1 mg/mL蛋白,样本蛋白浓度测定后需减去提取液自身的蛋白含量;
③若A测定或∆A测定大于1.0,建议将粗酶液或离心上清液适当稀释后再进行测定;若∆A测定小于0.02,建议适当延长酶促反应时间或制备更高浓度样本后再进行测定,计算时相应修改;
④加入定磷剂可能会有絮凝现象产生,充分混匀后测定即可,并不影响测定结果;
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