Department of Chemistry, Bharathiar University, Coimbatore, Tamil Nadu, India.
Department of Chemistry, Bharathiar University, Coimbatore, Tamil Nadu, India; Department of Chemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 Jun 15;234:118235. doi: 10.1016/j.saa.2020.118235. Epub 2020 Mar 5.
The design and construction of novel C-symmetric triaminoguanidine-triphenylamine conjugate (L) has been demonstrated and it displays positive solvatochromic behaviour with an increase in solvent polarity. The probe L acts as a selective colorimetric sensor for Cu ions over other metal ions. Further, it shows high selective and sensitive detection of Fe ions through turn-on fluorescence response. Moreover, the detection limits for Cu and Fe ions were found to be within the allowable range of the World Health Organisation (30 μM). The real-time application of the probe was showed by paper strip experiments as well as detection of Fe ions in pharmaceutical tablets.
新型 C 对称三氨基胍-三苯胺共轭物（L）的设计和构建已经得到证明，它在溶剂极性增加时表现出正溶致变色行为。探针 L 可以选择性地比其他金属离子对 Cu 离子进行比色检测。此外，它通过开启荧光响应对 Fe 离子表现出高选择性和灵敏性检测。此外，Cu 和 Fe 离子的检测限被发现处于世界卫生组织（30 μM）允许的范围内。通过纸条实验以及药物片剂中 Fe 离子的检测，展示了探针的实时应用。
