一种用于高选择性和灵敏检测汞的新型反应性1,8-萘二甲酰亚胺衍生物。
A New Reactive 1,8-Naphthalimide Derivative for Highly Selective and Sensitive Detection of Hg.
作者信息
Lv Feng, Chen Yufen, Tang Tengxuan, Chen Yuhua, Xu Dongmei
机构信息
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China.
Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University, Suzhou, Jiangsu, 215123, China.
出版信息
J Fluoresc. 2017 Jul;27(4):1285-1292. doi: 10.1007/s10895-017-2061-y. Epub 2017 Mar 25.
A 1,8-naphthalimide derivative with a reactive aliphatic hydroxyl was designed and synthesized as a fluorescent probe. Its structure was characterized by IR, H NMR, C NMR, LC-MS and HPLC. The probe showed high selectivity and sensitivity to Hg over other metal ions such as Pb, Na, K, Cd, Cr, Zn, Cu, Ni, Ca, Fe, Fe, Co, Mn and Mg in MeCN/HO (15/85, v/v). The increase in fluorescence intensity was linearly proportional to the concentration of Hg in the range of 18-40 μM with a detection limit of 1.38 × 10 mol/L. The probe could work in a pH span of 4.3-9.0 and respond to Hg quickly with strong anti-interference ability. Job's plot suggested a 1:2 complex of the probe and Hg.
设计并合成了一种带有活性脂肪族羟基的1,8 -萘二甲酰亚胺衍生物作为荧光探针。通过红外光谱（IR）、氢核磁共振谱（H NMR）、碳核磁共振谱（C NMR）、液相色谱 - 质谱联用（LC - MS）和高效液相色谱（HPLC）对其结构进行了表征。在乙腈/水（15/85，v/v）体系中，该探针对汞（Hg）的选择性和灵敏度高于其他金属离子，如铅（Pb）、钠（Na）、钾（K）、镉（Cd）、铬（Cr）、锌（Zn）、铜（Cu）、镍（Ni）、钙（Ca）、铁（Fe）、亚铁（Fe）、钴（Co）、锰（Mn）和镁（Mg）。荧光强度的增加与18 - 40 μM范围内汞的浓度呈线性比例关系，检测限为1.38×10⁻⁸ mol/L。该探针可在4.3 - 9.0的pH范围内工作，对汞响应迅速且抗干扰能力强。Job曲线表明探针与汞形成了1:2的配合物。
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