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. 2009 Dec 22;9(12):10447–10512. doi: 10.3390/s91210447

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© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 12. — Visible detail of the initial versus diminished light emission seen from the array of Sn²⁺ pressed pellets (left to right: SnSO₄, SnPO₃F, Sn(CH₃SO₃)₂, Sn(CF₃SO₃)₂) when exposed to (a) 100 ppm of pyridine and (b) 1 ppm pyridine. Reproduced with permission from [354].