期刊论文

Synthesis of Bipolar Tetradentate Ligands and Application of Their Supramolecular Polymers in Determination of Manganese by Resonance Light Scattering

中文

分析测试学报

1004-4957

2019

38

12

1475-1480

10.3969/j.issn.1004-4957.2019.12.011

国家自然科学基金资助项目(11475079).

本校为第一机构

锰是人体必需的微量元素之一;但摄入过量的锰也会导致中毒甚至死亡,所以开发一种低成本、高灵敏度、操作简便的检测锰离子的新方法显得尤为重要。该文采用水杨醛和3,3'-二氨基联苯胺合成双极四齿主体配体Bis-salophen,再用3,3'-二氨基联苯胺作为客体配体,通过自组装,利用共振光散射(Resonance light scattering,RLS)技术实现对Mn~(2+)的检测。利用软件Visual Minteq模拟不同酸度下的锰离子形态,实验研究表明,在缓冲溶液为Tris-HCl、酸度为pH 7.5、反应温度为20 ℃、反应时间为15 min的优化条件下,RLS强度与Mn~(2+)浓度在0.4 ~ 6.0 nmol/mL范围内呈良好的线性关系,回归方程为I_(RLS) = 270.64 c(...

Manganese is one of the essential trace elements in human body,but excessive intake of manganese may cause poisoning and even death. Therefore,it is of great significance to develop a new method for detection of manganese ions,which is low-cost,high sensitive and easy to operate. A kind of bipolar tetradentate host ligand bis-salophen was synthesizd with salicylaldehyde and 3,3'-diaminobenzidine and self-assembled with 3,3'-diaminobenzidine as a guest ligand to form a bis-salophen supramolecular polymer which was used in the detection of Mn~(2+...