A selective colorimetric chemosensor for detection of Cu(II) ions in aqueous samples
作者:Cristián Alejandro Ferretti、Leandro Gabriel Gutierrez、Vanina Alejandra Guntero、Pablo Javier Noriega、María Nelida Kneeteman
DOI:10.5802/crchim.131
日期:——
Résumé In this work we report a selective colorimetric chemosensor (S) for Cu 2+ ion detection in aqueous media. It has been synthesized by a condensation reaction between 1-hydrazinophtalazine and 6,6 ′ -dihydroxy-5,5 ′ dimethoxy-(1,1 ′ -biphenyl)-3,3 ′ -dicarbaldehyde. The interaction between S and Cu 2+ was studied and the results showed a bathochromic shift at 420 nm in UV–Vis spectra. The absorbance enhancement of S was attributed to complex formation with Cu 2+ by 2:1 stoichiometry. The proposed analytical method can be applied to Cu 2+ quantification with a linear range covering from 5.0 to 315.8μM, and can be used to routinely analyze Cu 2+ in environmental aqueous samples with satisfactory results. Supplementary Materials: Supplementary material for this article is supplied as a separate file: crchim-131-suppl.pdf
摘要 在这项工作中,我们报告了一种用于检测水介质中 Cu 2+ 离子的选择性比色化学传感器 (S)。它是通过 1-肼基酞嗪和 6,6 ′ -二羟基-5,5 ′ 二甲氧基-(1,1 ′ -联苯)-3,3 ′ -二甲醛之间的缩合反应合成的。研究了 S 与 Cu 2+ 之间的相互作用,结果表明在紫外可见光谱 420 纳米处出现了浴色偏移。S 的吸光度增强是由于与 Cu 2+ 以 2:1 的比例形成了络合物。所提出的分析方法可用于 Cu 2+ 的定量分析,其线性范围为 5.0 至 315.8μM,可用于环境水样中 Cu 2+ 的常规分析,结果令人满意。 补充材料: 本文的补充材料以单独文件形式提供:crchim-131-suppl.pdf