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基于吡咯并吡咯二酮的铜(Ⅱ)离子探针Boc-DPP的性能研究
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摘要
长时间饮用含有高浓度铜(Ⅱ)离子的水体会对人体造成极大的伤害[1],饮用水标准中铜(Ⅱ)离子最大浓度为1.3 ppm(20μM)[2]。本论文制备了一种基于吡咯并吡咯二酮的新型铜(Ⅱ)离子化学探针Boc-DPP,并通过测试紫外吸收光谱研究了其性能。随着铜(Ⅱ)离子浓度的增加,Boc-DPP在405nm处的吸收逐渐减弱,呈现较好的线性关系。基于Boc-DPP探针的检测限为61.4 n M,远低于饮用水标准的上限。同时水体中常见的其他金属离子对检测干扰较小。因此,Boc-DPP是一种简单,可行的铜(Ⅱ)离子检测探针。
A simple diketopyrrolopyrrole(DPP) derivative, DPP-BOC, with a highly selective recognition capability for Cu~(2+) were synthesized and used as chemosensor for Cu~(2+) in aqueous solution. DPP-BOC displays high affinity for Cu~(2+) and its UV-visible absorption spectra show sensitive changes at 405 nm upon addition of Cu~(2+). Relevant metal ions, even at high concentration, have negligible effect. DPP-BOC exhibits a linear response range for Cu~(2+) from 0 to 0.1 μM, with the detection limit of 6.14 × 10~(-8) M, far below the safety limit of Cu~(2+)(20 μM) set by the U.S. Environmental Protection Agency(EPA) for drinking water.
引文
[1](a)Montes,S.;Rivera-Mancia,S.;Diaz-Ruiz,A.;Tristan-Lopez,L.;Rios,C.Oxidative medicine and cellular longevity 2014,2014:147251.(b)Tiffany-Castiglioni,E.;Hong,S.;Qian,Y.International Journal Of Developmental Neuroscience 2011,29:811.
    [2]Long,L.;Wu,Y.;Wang,L.;Gong,A.;Hu,R.;Zhang,C.Analytica Chimica Acta 2016,908:1.

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