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交联淀粉接枝共聚物作为重金属离子的吸附剂用于废水处理的研究工作,近年来已有一些报导。本文讨论了改性淀粉对铜铅锌的吸附条件,对水中铜铅锌进行了富集测定。 1 仪器与试剂 WYX-402型原子吸收分光光度计(沈阳分析仪器厂);铜、铅、锌空心阴极灯(北京有色金属研究院);自制玻璃柱(高15cm,内径1cm),上端成布氏漏斗状,下端拉成内径0.7cm细管。 铜的标准储备液:准确称取分析纯的Cu(NO_3)_2·3H_2O 3.8047g,用二次去离子水溶解并定
Crosslinked starch graft copolymer as a heavy metal ion adsorbent for wastewater treatment research has been reported in recent years. In this paper, the adsorption conditions of copper, lead and zinc by modified starch are discussed, and the determination of copper, lead and zinc in water is carried out. 1 instruments and reagents WYX-402 atomic absorption spectrophotometer (Shenyang Analytical Instrument Factory); copper, lead, zinc hollow cathode lamp (Beijing Nonferrous Metal Research Institute); self-made glass column (height 15cm, diameter 1cm) Funnel-shaped, pulled into the bottom 0.7cm diameter thin tube. Copper standard stock solution: Accurately weighed 3.8047g of analytically pure Cu (NO_3) _2 · 3H_2O, dissolved in deionized water twice and set