①若A测定大于1.0,建议将待测样本使用试剂一适当稀释后再进行测定;若A测定低于0.02,建议适当增加样本量后再进行测定,计算时相应修改;
②脯氨酸和羟脯氨酸与茚三酮反应在570 nm处无吸收峰,测定结果不含这两种氨基酸的含量;
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