A Sensor for Trace H2O Detection in D2O

Dunning, Samuel G, Nunez, Ana J, Moore, Matthew D, Steiner, Alexander ORCID: 0000-0002-4315-6123, Lynch, Vincent M, Sessler, Jonathan L, Holliday, Bradley J and Humphrey, Simon M (2017) A Sensor for Trace H2O Detection in D2O Chem, 2 (4). pp. 579-589. ISSN 2451-9308, 2451-9294

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Abstract

PCM-22, a metal-organic framework material comprising triphenylphosphine and Ln3+ ions (Ln = Pr–Yb), exhibits solid-state luminescence at room temperature. Mixed-metal versions of PCM-22 that contain controlled amounts of Eu3+, Gd3+, and Tb3+ function as highly sensitive, broad-scope solid-state sensors that can rapidly identify unknown solvents by providing a unique “eight-factor” fingerprint. The sensors allow for immediate solvent identification via color changes that are obvious to the naked eye and also permit quantitative chemical analysis by uncomplicated spectrophotometry. These same materials achieve quantitative detection of H2O in D2O from 10 to 120,000 ppm. The detection of trace H2O is also demonstrated in a range of common solvents, including those incompatible with conventional laboratory titration methods. A series of luminescent phosphine coordination materials show diverse sensing capabilities. These solid-state sensor materials can detect trace H2O impurities in D2O from 10 to 120,000 ppm and can rapidly identify unknown solvents.

Item Type:	Article
Uncontrolled Keywords:	metal-organic framework, solid-state luminescence, lanthanides, trace detection, D2O detection, H2O detection, solvent sensing, phosphines
Depositing User:	Symplectic Admin
Date Deposited:	19 Apr 2017 11:43
Last Modified:	01 Mar 2026 08:44
DOI:	10.1016/j.chempr.2017.02.010
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3007008
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