KUČERA, Josef, Přemysl LUBAL, S. LIS and Petr TÁBORSKÝ. Determination of deuterium oxide content in water based on luminescence quenching. Talanta. AMSTERDAM: Elsevier, 2018, vol. 184, JUL, p. 364-368. ISSN 0039-9140. Available from: https://dx.doi.org/10.1016/j.talanta.2018.03.016.
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Basic information
Original name Determination of deuterium oxide content in water based on luminescence quenching
Authors KUČERA, Josef (203 Czech Republic, belonging to the institution), Přemysl LUBAL (203 Czech Republic, belonging to the institution), S. LIS (616 Poland) and Petr TÁBORSKÝ (203 Czech Republic, guarantor, belonging to the institution).
Edition Talanta, AMSTERDAM, Elsevier, 2018, 0039-9140.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10406 Analytical chemistry
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 4.916
RIV identification code RIV/00216224:14310/18:00102949
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1016/j.talanta.2018.03.016
UT WoS 000432234900046
Keywords in English Deuterium oxide determination; Time-Resolved Luminescence Spectroscopy; Luminescence quenching; Ln(III) luminescence; Organic compounds luminescence
Tags International impact, Reviewed
Changed by Changed by: prof. RNDr. Přemysl Lubal, Ph.D., učo 1271. Changed: 23/3/2019 16:41.
Abstract
Water molecules (H2O) often reduce luminescence lifetimes of various luminescence probes. The change of lifetime is usually caused by dynamic luminescence quenching induced by O-H oscillators which effectively take away energy from excited molecule. The process can be described by Stern-Volmer equation. We have studied selected luminescence systems where it is possible to detect considerable changes of lifetime in presence/absence of H2O and D2O in this work for analytical purposes. We have tested both, inorganic (Ln(3+)) and organic compounds using three different instrumentation in order to find the largest change between tau(H) and tau(D). The Ln(3+) containing systems have shown considerable increase/decrease of lifetimes in the presence/absence of D2O (Eu3+ : tau(D)/tau(H) = 34.5) whereas organic systems gave significantly lower values of tau(D)/tau(H) (coumarin 123 lifetime ratio, tau(D)/tau(H) = 1.94). The calculated LOD varied from 0.04 mol l(-1) (samarium nitrate) to 6.55 mol l(-1) (riboflavin).
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