①粗酶液制备等过程均需要在冰上进行,建议样品处理后当天完成测定,粗酶液避免反复冻融;
②试剂一中含有一定浓度的蛋白(约0.1 mg/mL),测定样品蛋白浓度时需减去本身的蛋白含量;
③反应过程中应保持37℃(哺乳动物)或25℃(其他物种)恒温,建议在烧杯中装入适量37℃(哺乳动物)或25℃(其他物种)蒸馏水,将此烧杯放入37℃(哺乳动物)或25℃(其他物种)恒温水浴中,在反应过程中把比色皿连同反应液放在此烧杯中;
④准确在10 s和190 s处完成读数,以保证实验结果的准确性;若使用96孔UV板测定,需使用多道移液器且分批进行,以确保组间反应时间一致;
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