A handy and accessible tool for identification of Sn(II) in toothpaste
Kundu, S., Truong, K.-N., Saha, S., Rissanen, K., & Sahoo, P. (2022). A handy and accessible tool for identification of Sn(II) in toothpaste. Scientific Reports, 12, Article 2305. https://doi.org/10.1038/s41598-022-06299-0
Published inScientific Reports
© The Author(s) 2022
An easily accessible colorimetric probe, a carbazole–naphthaldehyde conjugate (CNP), was successfully prepared for the selective and sensitive recognition of Sn(II) in different commercially-available toothpaste and mouth wash samples. The binding mechanism of CNP for Sn2+ was confirmed by UV–Vis, 1H, and 13C NMR titrations. The proposed sensing mechanism was supported by quantum chemical calculations. Selective detection of Sn(II) in the nanomolar range (85 nM), among other interfering metal ions, makes it exclusive. Moreover, Sn2+ can be detected with a simple paper strip from toothpaste, which makes this method handy and easily accessible. The potential application of this system for monitoring Sn2+ can be used as an expedient tool for environmental and industrial purposes.
PublisherNature Publishing Group
Publication in research information system
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Additional information about fundingP.S. acknowledges CSIR, India, for awarding her the major Grant [Project file no. 02(0384)/19/EMR-II dated 20/05/2019]. S.K. and S.S. are sincerely thankful to UGC India for their research fellowship. We are thankful to Department of ISERC, Visva-Bharati University, India for the assistance with FT-IR, funded by DST FIST (ref. no. SR/FST/CS-I/2017/21).
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