Chemistry Department, Islamic Azad University, Gachsaran Branch, Gachsaran, Iran.
Food Chem Toxicol. 2011 Jun;49(6):1229-34. doi: 10.1016/j.fct.2011.02.025. Epub 2011 Mar 3.
Selective, sensitive and efficient methods for preconcentration of trace amounts of metal ions including Cr(3+), Cu(2+), Zn(2+) and Ni(2+) ions by incorporation of 2-hydroxy-(3-((1-H-indol 3-yle)phenyl) methyl) 1-H-indol (2-HIYPMI) on SDS-A has been reported. The proposed methods are based on the uptake of chelate of under study metal ions with these new ligands loaded on SDS-A. The influences of the analytical parameters including pH, ligand and SDS amount, eluting solution (type and concentrations) and sample volume on metal ions recoveries were investigated. The extraction efficiency was >95% with relative standard deviation lower than 5%. The method has been successfully applied for the extraction and determination of these ions content in some real samples.
已报道通过将 2-羟基-(3-((1-吲哚 3-基)苯基)甲基)-1-吲哚(2-HIYPMI)结合到 SDS-A 上来选择性、灵敏且高效地预浓缩痕量金属离子，包括 Cr(3+)、Cu(2+)、Zn(2+)和 Ni(2+)离子。所提出的方法基于与这些负载在 SDS-A 上的新配体形成配合物的研究中金属离子的螯合作用。研究了分析参数（包括 pH、配体和 SDS 量、洗脱溶液（类型和浓度）和样品体积）对金属离子回收率的影响。萃取效率>95%，相对标准偏差低于 5%。该方法已成功应用于一些实际样品中这些离子含量的提取和测定。
