①若同时测定多个样本,可根据样本量按试剂一:试剂二 = 8:1的体积比配制为检测工作液(现用现配,严禁一次性全部配制储存使用);96孔UV板或微量石英比色皿中加入20 µL待测样本(或20 µL标准应用液),再加入180 µL检测工作液,充分混匀并立即开始计时;
②准确在30 s和150 s处完成吸光值测定,以保证实验结果的准确性和重复性;若使用96孔UV板进行测定应使用多道移液器,且分次进行检测,以确保组间反应时间一致;
③若A1测定大于1.4,建议将待测样本使用提取液适当稀释后再进行测定,计算时相应修改;
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