Scholarlink

<p><i>Camellia</i> <i>oleifera</i> is one of the important woody oil crops in China, and its food safety has attracted much attention. Mercury (Hg) is a highly toxic heavy metal ion, which can enter <i>Camellia oleifera</i> and its products through environmental migration and bioaccumulation, and poses a potential threat to human health. In this study, an imine-linked three-component covalent organic framework (TD-COF) was synthesized by Schiff base reaction from 4,4′,4″-(1,3,5-triazine-2,4,6-triyl) tris (TZ), 2,5-dimethoxyterephthalaldehyde (DM), and 2,5-dihydroxy-1,4-benzenedicarboxylic aldehyde (DA). TD-COF features a rapid and highly sensitive detection of Hg<sup>2+</sup> with a detection limit of 8.43&#xa0;nM. In actual <i>Camellia oleifera</i> samples, it demonstrated excellent recovery (96.3%–102.54%) and stability. It shows excellent potential for designed imine-linked fluorescent COFs in <i>Camellia oleifera</i> detection.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

An imine bond-based fluorescent covalent organic framework for efficient detection of mercury (II) ions in Camellia oleifera

  • 期刊论文

  • 发表日期：

    2026年3月9日

查看全文
  • Chunhua Luo,
  • Jing Chang,
  • Tianxin Wang,
  • Shubei Wang,
  • Yinyin Yu,
  • Yanhua Tang,
  • Qian Ma,
  • Jing Yang

摘要

Camellia oleifera is one of the important woody oil crops in China, and its food safety has attracted much attention. Mercury (Hg) is a highly toxic heavy metal ion, which can enter Camellia oleifera and its products through environmental migration and bioaccumulation, and poses a potential threat to human health. In this study, an imine-linked three-component covalent organic framework (TD-COF) was synthesized by Schiff base reaction from 4,4′,4″-(1,3,5-triazine-2,4,6-triyl) tris (TZ), 2,5-dimethoxyterephthalaldehyde (DM), and 2,5-dihydroxy-1,4-benzenedicarboxylic aldehyde (DA). TD-COF features a rapid and highly sensitive detection of Hg2+ with a detection limit of 8.43 nM. In actual Camellia oleifera samples, it demonstrated excellent recovery (96.3%–102.54%) and stability. It shows excellent potential for designed imine-linked fluorescent COFs in Camellia oleifera detection.