水中重金属离子电富集样品处理技术
Enrichment Technique of Heavy Metal Ions in Water by Electromembrane Isolation
摘 要
提出了一种低浓度重金属离子溶液的快速富集净化处理方法.目标金属离子首先络合为负离子,在正电压牵引下,金属络合离子到达离子膜表面,在膜表面阴离子层吸引下通过阳离子交换膜,并在受体溶液中再次络合为阴离子络合物,在电场作用下向阳极区移动.富集电流为1.5 mA,汞离子、镉离子的富集时间分别为20,60 min,水样中汞离子、镉离子的富集倍数分别为10.5,3.2倍.本方法避免了液膜稳定性缺陷.
络合
离子交换膜
水
Heavy metal ions
Complexation
Ion exchange membrane
Water
Abstract
Rapid enrichment and purification method for low concentration metal ions in solution was proposed.The target metal ions formed coordinated complex with anion first.Under the positive voltage traction,metal complexing ions reached the surface of the ion-exchange membrane and passed through cation exchange membrane under the attraction of anionic membrane layer.It formed anionic complex again in receptor solution and moved to the anode zone in the electric field.Enrichment current found was 1.5 mA.Enrichment times of Hg2+,Cd2+ found were 20,60 min respectively.Enrichment facors of Hg2+,Cd2+ in water sample found were 10.5,3.2 times,respectively.This method avoided the defect of liquid membrane stability.
中图分类号 O657.31
所属栏目 工作简报
基金项目 浙江省质量技术监督局科研计划项目(20110230)
收稿日期 2014/5/15
修改稿日期
网络出版日期
作者单位点击查看
联系人作者费贤明(fxm7211@163.com)
备注费贤明(1967-),男,浙江嘉兴人,高级工程师,研究方向为食品检测技术.
引用该论文: FEI Xian-ming,ZHU Hong-liang,YANG Zhi-ping,QIAN Fei. Enrichment Technique of Heavy Metal Ions in Water by Electromembrane Isolation[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2015, 51(5): 605～608
费贤明,朱洪亮,杨志萍,钱非. 水中重金属离子电富集样品处理技术[J]. 理化检验－化学分册, 2015, 51(5): 605～608
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】金利通,杨琳荣,徐通敏,等.TOPO花型修饰电极富集-石墨炉原子吸收法测定水中痕量Cr(Ⅵ)的研究[J].分析化学,1988,16(5):410-414.
【2】朱军,李银玉.三辛基氧化膦化学修饰钨电极电富集-石墨炉原子吸收法测定镓的研究[J].分析化学,1991,19(11):1298-1300.
【3】张春梅,吴峰,李柏元,等.石墨烯-Nafion/纳米金复合物修饰玻碳电极阳极溶出伏安法测定大米中痕量锌[J].理化检验-化学分册,2013,49(11):1321-1325.
【4】J NSSON J ,MATHIASSON L J.Liquid membrane extraction in analytical sample preparation[J].Trends Anal Chem,1999,18:318-334.
【5】PEDERSEN-BJERGAARD S,RASMUSSEN K E.Electrokinetic migration across artificial liquid membranes new concept for rapid sample preparation of biological fluids[J].J Chromatogr A,2006,1109(2):183-190.
【6】BASHEER C,TAN S H,LEE H K.Extraction of lead ions by electromembrane isolation[J].J Chromatorgr A,2008,1213(1):14-18.
【7】胡真真,王雷,姚超英,等.加电中空纤维膜萃取-离子色谱法测定乙酸丁酯中的无机阴离子[J].分析化学,2011,39(8):1261-1265.
【8】陈银,张云燕,李雪梅,等.金属离子提取的支撑性液膜稳定性:膜材料研究进展[J].化学进展,2011,23(5):1033-1040.
【9】BAMES D E,MAESHALL G D.Rapid optimization of chemical parameters affecting supported liquid membranes[J].J Sep Scitechnol,1995,30(5):751-776.
【2】朱军,李银玉.三辛基氧化膦化学修饰钨电极电富集-石墨炉原子吸收法测定镓的研究[J].分析化学,1991,19(11):1298-1300.
【3】张春梅,吴峰,李柏元,等.石墨烯-Nafion/纳米金复合物修饰玻碳电极阳极溶出伏安法测定大米中痕量锌[J].理化检验-化学分册,2013,49(11):1321-1325.
【4】J NSSON J ,MATHIASSON L J.Liquid membrane extraction in analytical sample preparation[J].Trends Anal Chem,1999,18:318-334.
【5】PEDERSEN-BJERGAARD S,RASMUSSEN K E.Electrokinetic migration across artificial liquid membranes new concept for rapid sample preparation of biological fluids[J].J Chromatogr A,2006,1109(2):183-190.
【6】BASHEER C,TAN S H,LEE H K.Extraction of lead ions by electromembrane isolation[J].J Chromatorgr A,2008,1213(1):14-18.
【7】胡真真,王雷,姚超英,等.加电中空纤维膜萃取-离子色谱法测定乙酸丁酯中的无机阴离子[J].分析化学,2011,39(8):1261-1265.
【8】陈银,张云燕,李雪梅,等.金属离子提取的支撑性液膜稳定性:膜材料研究进展[J].化学进展,2011,23(5):1033-1040.
【9】BAMES D E,MAESHALL G D.Rapid optimization of chemical parameters affecting supported liquid membranes[J].J Sep Scitechnol,1995,30(5):751-776.
相关信息
