含有亚胺-酰胺键的荧光比率型双足光极：用于灵敏的钍（IV）离子传感
Fluorogenic ratiometric dipodal optode containing imine-amide linkages: exploiting subtle thorium (IV) ion sensing.
作者信息
Tayade Kundan, Kaur Amanpreet, Tetgure Sandesh, Chaitanya G Krishana, Singh Narinder, Kuwar Anil
机构信息
School of Chemical Sciences, North Maharashtra University, Jalgaon, India.
Centre for Nanoscience and Nanotechnology, Panjab University, Chandigarh, India.
出版信息
Anal Chim Acta. 2014 Dec 10;852:196-202. doi: 10.1016/j.aca.2014.09.016. Epub 2014 Sep 16.
The (13E,19E)-N1',N3'-bis[4-(diethylamino)-2-hydroxybenzylidene]malonohydrazide (L) has been developed for the detection of Th(4+) ions using dual channel signalling system. The UV-vis absorbance and fluorescence spectroscopic data revealed the formation of L-Th(4+) complex in 1:1 equilibrium. The density functional theory (DFT) also confirms the optimum binding cavity for the recognition of metal ion. The binding constant computed from different mathematical models for an assembly of L-Th(4+). The detection limit of L for Th(4+) recognition is to a concentration down to 0.1 μM (0.023 μg g(-1)). The present sensing system is also successfully applied for the detection of Th(4+) ion present in soil near nuclear atomic plants.
已开发出（13E，19E）-N1'，N3'-双[4-（二乙氨基）-2-羟基亚苄基]丙二酰肼（L），用于使用双通道信号系统检测Th(4+)离子。紫外可见吸收光谱和荧光光谱数据表明，L与Th(4+)形成了1:1平衡的配合物。密度泛函理论（DFT）也证实了识别金属离子的最佳结合腔。通过不同数学模型计算出L-Th(4+)组装体的结合常数。L对Th(4+)识别的检测限低至0.1 μM（0.023 μg g(-1)）。该传感系统还成功应用于检测核电站附近土壤中存在的Th(4+)离子。
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