期刊论文

中文

南华大学学报(自然科学版)

1673-0062

2016

30

4

116-120+128

10.19431/j.cnki.1673-0062.2016.04.022

本校为第一机构

以2,6-吡啶二羰酰氯与罗丹明酰胺缩合反应的产物（BR）为荧光＂关—开＂型探针,研究了探针BR选择性识别Fe^3＋的各种影响因素,建立了BR荧光检测分析痕量Fe^3＋的方法.Job＇s Plot实验证明BR与Fe^3＋的络合比为1∶2.且Fe^3＋浓度在0-20μmol/L范围内与BR呈良好的线性关系（R^2=0.998）,检出限为1.8×10^-8mol/L.

A turn-on fluorescent probe BR based on rhodamine for trivalent ferric ion（ Fe^3＋） was synthesized.It was studied that the various factors,such as p H,the water content of the solvent,concentration,interfering ion,affected the fluorescence of BR and Fe^3＋complex.And an approach was developed for the detection of trace amount of Fe^3＋based on BR as fluorescent probe.The sensing behavior between BR and Fe^3＋was studied by Job＇s titration,which showed a 1 ∶ 2 complex formation. In addition,the sensor responded to Fe^3＋with a linear range of 0 -...