移取2mL此溶液到50mL容量瓶中并用缓冲溶液定容至刻度，混匀。

Transfer 2.0 mL of this solution to a 50-mL volumetric flsk, dilute with Buffer solution to volume, and mix.

youdao

移取2mL此溶液到50mL容量瓶中并用缓冲溶液定容至刻度，混匀。

Transfer 2.0 mL of this solution to a 50-mL volumetric flsk, dilute with Buffer solution to volume, and mix.

youdao