Cu(I)-based molecular emitters for quantification of fluoride and phosphate in surface waters. (November 2021)

• Record Type: Journal Article
• Authors: Surkova, Anastasiia A.; Paderina, Aleksandra V.; Legin, Andrey V.; Grachova, Elena V.; Kirsanov, Dmitry O.
• Is Part Of: Measurement. Volume 184(2021)
• Publication Date: 2021-11
• Subjects: Optical multisensor system -- Molecular emitters -- Copper complexes -- Chemometrics -- Water analysis -- Fluoride -- Phosphate; Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2021.109976
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: Cu(I) molecular emitters as multiband light sources for multisensor system. Optical multisensor system with tuneable intensity and wavelength range. Fluoride and phosphate quantification in natural and tap waters. Abstract: Advances in material science, optics, and electronics allow the creation of simple and low-cost measuring devices for various applications. In the present work, an optical multisensor system was designed using Cu(I) molecular emitters as a light source. The major advantage of this measuring platform is the ability to adjust the source wavelength for a particular analytical task. Here the possibility to measure fluoride and phosphate content in natural and tap waters using the optical setup with a UV flashlight as an excitation source for Cu(I) complexes has been demonstrated. The root mean-square prediction error (RMSEP) value for analyzed water samples attained with partial least-squares (PLS) regression method was 0.07 mg/L for both fluoride (0–0.4 mg/L concentration range) and phosphate (0–0.96 mg/L). These values are comparable with those for standard analytical techniques. This proof of concept study confirms the possibility of constructing adjustable optical multisensor systems based on Cu(I) emitters for real-life applications.