分离后溶液和残渣中的锌采用常规的EDTA容量法或原子吸收光谱法测定。
The zinc in the separation solution and the leach residue is determined by EDTA titrimetry and atomic absorption spectrometry.
锌（Zn）非残渣态含量有随城市化程度加剧而增加的趋势。
The research found that the content of Non-residual Zinc(Zn) would be increased with the increasing degree of urbanization.
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