Abstract
Copper ions (Cu2+) and sulfide (S2-) play essential roles in many physiologies and pathologic processes. Herein, a new "on-off-on" tryptanthrin-based probe TR-1 (TR-1) has been designed and synthesized inafacileandeconomicalway. TR-1 exhibited highly selective and sensitive response to Cu2+ without any interference over 14 competitive metal ions and the detection limit downs to 24nM, which is far below the Chinese standard of fishery water quality (157nM). The 'in situ' prepared complex TR-1 + Cu2+ could also be applied to detect S2- with the detection limit of 62nM. Further, TR-1 was potentially applied for the analysis of copper ions in water samples.
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More From: Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
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