A Dual‐Functional “On‐Off‐On” Relay Fluorescent Probe for the Highly Sensitive Detection of Copper(II) and Phosphate Ions,ChemistrySelect

当前位置： X-MOL 学术 › ChemistrySelect › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A Dual‐Functional “On‐Off‐On” Relay Fluorescent Probe for the Highly Sensitive Detection of Copper(II) and Phosphate Ions
ChemistrySelect ( IF 1.9 ) Pub Date : 2020-01-24 , DOI: 10.1002/slct.201904573
Minmin Wang _{1,

2} , Chun Wang _{2,

3} , Miao Wang _{1,

2} , Tongming Sun _{1,

2} , Yang Huang _{2,

3} , Yanfeng Tang _{1,

2} , Jianfeng Ju _{1,

2} , Lujie Shen _{1,

2} , Yeyu Hu _{1,

2} , Jinli Zhu _{1,

2}

Affiliation

A high‐efficiency dual‐functional on‐off‐on fluorescence probe: 2′–4′‐dihydroxydiphenyl‐8‐formyl‐7‐hydroxycoumarin hydrazine (L) based on photoelectron transfer mechanism (PET) was designed and synthesized, and its ion recognition characteristics were fully studied by spectroscopy. As expected, probe L shows highly sensitive to Cu²⁺ in EtOH‐HEPES (20 mM v/v, 80 : 20, pH =7.40) solution, and its detection limit up to 6.14 ×10⁻⁷ M. The stoichiometric ratio of L−Cu²⁺ complex was determined as 1 : 1 based on ¹H NMR titration and ESI‐MS. Meanwhile, the resulted L−Cu²⁺ complex shows good selectivity for the phosphoric acid family anion (H₂PO₄⁻, HPO₄²⁻ and PO₄³⁻), which denote probe L the dual‐function in rapid detection of Cu²⁺ and phosphate family's ions.

中文翻译：

双功能“开-关-开”继电器荧光探针，用于高灵敏度地检测铜（II）和磷酸盐离子

设计并合成了一种基于光电子转移机理（PET）的高效双功能开关荧光探针：2'–4'-二羟基二苯基-8-甲酰基-7-羟基香豆素肼（L）光谱学对识别特性进行了充分的研究。如预期的那样，探针L在EtOH-HEPES（20 mM v / v，80:20，pH = 7.40）溶液中对Cu ²⁺高度敏感，其检出限高达6.14×10 ^-7 M.基于¹ H NMR滴定和ESI-MS，L-Cu ²⁺络合物的^摩尔比为1：1 。同时，所得的L-Cu ²⁺络合物对磷酸族阴离子（H ₂PO ₄^-，HPO ₄^2-和PO ₄^3-），其分别表示探测器大号在快速检测Cu的双功能²⁺和磷酸盐家族的离子。

更新日期：2020-01-24

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11