Methods: Cold atomic absorption spectrometry was used.

方法：冷原子吸收光谱法。

youdao

Method: Using atomic absorption spectrometry, cold atomic fluorescence method and double tracts atomic fluorescence spectrometry.

方法：采用原子吸收光谱法、冷原子荧光法、双道原子荧光法。

youdao

Method: Using atomic absorption spectrometry, cold atomic fluorescence method and double tracts atomic fluorescence spectrometry.

方法：采用原子吸收光谱法、冷原子荧光法、双道原子荧光法。

youdao