The principal environmental problem of landfill is leachate of which the water quality is complex, with high COD_ (cr) and high heavy metal ion concentration as well as high NH_3-N concentration.
生活垃圾填埋场对环境的主要影响是垃圾渗滤液，其水质复杂多变，具有高COD含量、高重金属离子和高nh_3 - N含量的特点。
The method of parallel motion of response curve for lead ion-selective electrode in lead buffers is given to determine the stability constant of Pb-NTA complex in ethanol-water solvent.
本文提出了金属缓冲溶液中离子选择电极响应曲线平移法测定配合物的稳定常数。
The invention relates to novel water-soluble cellulose derivatives comprising a ligand capable of forming a complex with a polyvalent metal ion.
本发明涉及新的水溶性纤维素衍生物，其包含能够与多价金属离子形成配合物的配体。
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