首页|5,10,15,20-四(五氟苯基)卟啉聚集体荧光增强检测Fe3+

5,10,15,20-四(五氟苯基)卟啉聚集体荧光增强检测Fe3+

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以再沉淀法,使用四氢呋喃作为良溶剂溶解5,10,15,20-四(五氟苯基)卟啉(TPPP),水作为不良溶剂诱导组装,于常温下构筑了TPPP聚集体,对其形貌结构及发光性质进行了表征.研究发现该聚集体在Fe3+存在的情况下,荧光会明显增强,因此该聚集体可作为荧光探针来检测Fe3+离子.通过检测,确定了在5.0×10-8~5.18×10-6 mol/L的Fe3+浓度范围内,荧光探针荧光强度与Fe3+浓度之间呈线性关系,R2=0.993 56,并计算得到了检出限为2.97×10-8 mol/L.此外,TPPP聚集体荧光探针在检测Fe3+时具有较好的选择性和抗干扰性.最后通过纯净水、自来水、矿泉水的加标实验证明其具有良好的可行性,加标回收率在95.02%~104.73%之间.
5,10,15,20-Tetrakis(Pentafluorophenyl)Porphine(TPPP)Aggregate for the Fluorescence-Enhanced Detection of Fe3+
TPPP aggregates were constructed by reprecipitation method at room temperature using tetrahy-drofuran as a good solvent to dissolve 5,10,15,20-tetrakis(pentafluorophenyl)porphine(TPPP)and water as a bad solvent to induce the assembly,and their morphological structure and luminescent proper-ties were characterized.It is found that the fluorescence of the aggregate is significantly enhanced in the presence of Fe3+,so the aggregate can be used as a fluorescent probe to detect Fe3+ions.Through detec-tion,it is determined that there is a linear relationship between the fluorescence intensity of the probe and the concentration of Fe3+in the range of 5.0×10-8 to 5.18×10-6 mol/L with R2=0.993 56 and the detection limit is calculated to be 2.97×10-8 mol/L.In addition,TPPP aggregate fluorescent probe has good selectivity and anti-interference in the detection of Fe3+.Finally,it is verified that it has good feasi-bility in the spiking experiments of pure water,tap water,and mineral water,the recovery rate of spiking is between 95.02%and 104.73%.

porphyrinself-assemblyaggregation-induced emissionfluorescent probeFe3+

伍嘉翔、谢龙、耿广威、宋豪非

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中北大学 化学与化工学院,山西 太原 030051

河南牧业经济学院 理学部,河南 郑州 450046

河南牧业经济学院 食品与生物工程学院,河南 郑州 450046

卟啉 自组装 聚集诱导发光 荧光探针 Fe3+

2024

中北大学学报(自然科学版)
中北大学

中北大学学报(自然科学版)

影响因子:0.258
ISSN:1673-3193
年,卷(期):2024.45(6)