4-{[(2-羟基苯基)亚氨基]甲基}-1,2-苯二酚（HIMB）负载于Amberlite XAD-16：制备及其作为金属萃取剂的应用

4-{[(2-Hydroxyphenyl)imino]methyl}-1,2-benzenediol (HIMB) anchored Amberlite XAD-16: Preparation and applications as metal extractants.

作者信息

Venkatesh Gopalan, Singh Ajai K

机构信息

Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India.

出版信息

Talanta. 2007 Jan 15;71(1):282-7. doi: 10.1016/j.talanta.2006.03.059. Epub 2006 May 9.

DOI:10.1016/j.talanta.2006.03.059

PMID:19071301

Abstract

Amberlite XAD-16 was loaded with 4-{[(2-hydroxyphenyl)imino]methyl}-1,2-benzenediol (HIMB) via azo linker and the resulting resin AXAD-16-HIMB explored for enrichment of Zn(II), Mn(II), Ni(II), Pb(II), Cd(II), Cu(II), Fe(III) and Co(II) in the pH range 5.0-8.0. The sorption capacity was found between 56 and 415mumolg(-1) and the preconcentration factors from 150 to 300. Tolerance limits for foreign species are reported. The kinetics of sorption is not slow, as t(1/2) is </=15min. The chelating resin can be reused for seventy cycles of sorption-desorption without any significant change (<2.0%) in the sorption capacity. The limit of detection values (blank+3s) are 1.72, 1.30, 2.56, 2.10, 0.44, 2.93, 2.45 and 3.23mugl(-1) for Zn, Mn, Ni, Pb, Cd, Cu, Fe and Co, respectively. The enrichment on AXAD-16-HIMB coupled with flame atomic absorption spectrometry (FAAS) monitoring is used to determine the metal ion ions in river and synthetic water samples, Co in vitamin tablets and Zn in powdered milk samples.

摘要

通过偶氮连接剂将4-{[(2-羟基苯基)亚氨基]甲基}-1,2-苯二酚（HIMB）负载到Amberlite XAD-16上，并研究所得树脂AXAD-16-HIMB在pH值5.0 - 8.0范围内对Zn(II)、Mn(II)、Ni(II)、Pb(II)、Cd(II)、Cu(II)、Fe(III)和Co(II) 的富集情况。发现吸附容量在56至415μmol g⁻¹之间，预富集因子在150至300之间。报告了外来物种的耐受限度。吸附动力学并不缓慢，因为t(1/2) ≤15分钟。螯合树脂可重复使用70次吸附 - 解吸循环，吸附容量无任何显著变化（<2.0%）。Zn、Mn、Ni、Pb、Cd、Cu、Fe和Co的检测限（空白+3s）分别为1.72、1.30、2.56、2.10、0.44、2.93、2.45和3.23μg L⁻¹。AXAD-16-HIMB富集结合火焰原子吸收光谱法（FAAS）监测用于测定河水和合成水样中的金属离子、维生素片中的Co以及奶粉样品中的Zn。