基于氟硼二吡咯衍生物比率型熒光探針檢測氰根離子
發(fā)布時間：2018-11-25 16:02
【摘要】：合成了一種可在含水介質(zhì)中單一性識別CN~-的比率型熒光探針BODIPY 1.通過熒光光譜和紫外吸收光譜來研究BODIPY 1檢測CN~-的能力.結(jié)果表明,在四氫呋喃和水(V/V=9/1)的混合溶液中,BODIPY 1的最大吸收波長和熒光最大發(fā)射波長分別為515 nm和534 nm(激發(fā)波長為515 nm),所測陰離子中,包括CN~-、F~-、Cl~-、Br~-、I~-、ClO_4~-、Ac_O~-、NO_3~-、H_2PO_4~-和HSO_4~-,僅CN~-可與BODIPY 1發(fā)生加成反應(yīng)從而引起其吸收峰藍(lán)移18 nm,并且熒光最大發(fā)射波長藍(lán)移20 nm,并伴隨著強(qiáng)度降低40%.BODIPY 1檢測CN~-的檢測限可以達(dá)到0.98μmol·L~(-1),低于世界衛(wèi)生組織規(guī)定飲用水中的CN~-的最大含量不能超過1.9μmol·L~(-1).將其應(yīng)用到實際水樣,發(fā)現(xiàn)和純水樣的響應(yīng)基本一致,表明BODIPY 1可用于實際水樣的檢測.
[Abstract]:A ratio fluorescent probe BODIPY 1 was synthesized, which can recognize CN~- singly in aqueous medium. The ability of BODIPY 1 to detect CN~- was studied by fluorescence spectrum and UV absorption spectrum. The results show that in the mixed solution of tetrahydrofuran and water (V/V=9/1), the maximum absorption wavelength and fluorescence emission wavelength of BODIPY 1 are 515 nm and 534 nm (excitation wavelength 515 nm),) respectively, including CN~-,F~-,. Only Cl~-,Br~-,I~-,ClO_4~-,Ac_O~-,NO_3~-,H_2PO_4~- and HSO_4~-, CN~- can react with BODIPY 1 to blue shift its absorption peak at 18 nm, and maximum emission wavelength to 20 nm,. The detection limit of CN~- can reach 0.98 渭 mol L ~ (-1), which is less than 1.9 渭 mol L ~ (-1) in drinking water. The results show that BODIPY 1 can be used for the detection of real water samples.
【作者單位】： 江漢大學(xué)交叉學(xué)科研究院;
【基金】：江漢大學(xué)科研啟動基金(06090001)資助~~
【分類號】：O657.3
[Abstract]:A ratio fluorescent probe BODIPY 1 was synthesized, which can recognize CN~- singly in aqueous medium. The ability of BODIPY 1 to detect CN~- was studied by fluorescence spectrum and UV absorption spectrum. The results show that in the mixed solution of tetrahydrofuran and water (V/V=9/1), the maximum absorption wavelength and fluorescence emission wavelength of BODIPY 1 are 515 nm and 534 nm (excitation wavelength 515 nm),) respectively, including CN~-,F~-,. Only Cl~-,Br~-,I~-,ClO_4~-,Ac_O~-,NO_3~-,H_2PO_4~- and HSO_4~-, CN~- can react with BODIPY 1 to blue shift its absorption peak at 18 nm, and maximum emission wavelength to 20 nm,. The detection limit of CN~- can reach 0.98 渭 mol L ~ (-1), which is less than 1.9 渭 mol L ~ (-1) in drinking water. The results show that BODIPY 1 can be used for the detection of real water samples.
【作者單位】： 江漢大學(xué)交叉學(xué)科研究院;
【基金】：江漢大學(xué)科研啟動基金(06090001)資助~~
【分類號】：O657.3
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