AI Article Synopsis
- - A new sensor based on rhodamine B was developed to detect mercury (Hg) using a combination of a fluorophore and ionophore, which changes color in Hg's presence.
- - The sensor displays noticeable red fluorescence and a red color visible to the naked eye, allowing for quick qualitative and quantitative measurement of Hg levels.
- - It can detect Hg levels as low as 16 nM within 1 second and can also be used to measure water content in acetonitrile solutions.
Article Abstract
A rhodamine B-based sensor (RS) was designed and synthesized by a combination of the spirolacton rhodamine B (fluorophore) and multidentate chelates (ionophore) with high affinity towards Hg. In the presence of Hg, the resulting red-orange fluorescence (under UV light) and naked eye red color of RS are supposed to be used for quantitative and qualitative measurement of Hg. Further fluorescent titration and analysis demonstrate that RS can selectively detect Hg within 1 s with a low limit of detection (LOD) of 16 nM in acetonitrile media, meanwhile, the association constant (K) was calculated to be 0.32 × 10 M. More importantly, the resultant complex (RSHg) of RS and Hg has also been successfully applied to detect limited water content in acetonitrile solution.
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| http://dx.doi.org/10.1016/j.saa.2020.118657 | DOI Listing |
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