Comparative Evaluation of Trace Heavy Metal Ions in Water Sample using Complexes of Dithioligands by Flame Atomic Absorption Spectrometry
作者:Vinay Kumar Maurya、Ravi Pratap Singh、Lal Bahadur Prasad
DOI:10.13005/ojc/340111
日期:2018.2.28
prepared by the metathetic reaction of trace heavy metals like Cd, Zn, Cu and Hg with two different dithioligands of the formula ML 2 [ M= Cd, Zn, Cu and Hg and L= potassium-1,1-dicyano-2,2-ethylenedithiolate and potassium N-4-fluorobenzyl, N butyldithiocarbamate ] and characterized by elemental analysis, IR, UV-visible, 1H,13C NMR and AAS. Atomic Absorption Spectrophotometric measurements revealed that
通过痕量重金属(如Cd,Zn,Cu和Hg)与两种不同分子式ML 2的二硫配体的易位反应制备了四种新的配合物[M = Cd,Zn,Cu和Hg,L =钾-1,1-二氰基-2,2-亚乙基二硫代磺酸盐和N-4-氟苄基钾,N-丁基二硫代氨基甲酸酯],并通过元素分析,IR,紫外可见,1H,13C NMR和AAS表征。原子吸收分光光度法测量表明,N取代的二硫代氨基甲酸酯配体更有效。重金属的去除效率高于碳取代的二硫代氨基甲酸酯配体。摩尔比研究表明,该配合物的分子式为ML 2。