HIGHLY SENSITIVE CHITOSAN-BASED OPTICAL FLUORESCENT SENSOR FOR GASEOUS METHYLAMINE DETECTION

• Authors: Aleksandr Yu Mironenko , Aleksandr A. Sergeev , Aleksandr E. Nazirov , Sergey S. Voznesenskiy , Svetlana Yu. Bratskaya , Anatoliy G. Mirochnik
• Languages of publication: EN

Abstracts

EN

An optical fluorescent sensor based on a chitosan thin film co-doped with Eu3+ and a bromothymol blue pH indicator has been developed. Near-UV to visible (350–400 nm) excitation of the europium (III) chelate complexes with 1,3-diphenyl-1,3-propanedione exhibits a typical lanthanide emission with maximum at 618 nm. Luminescent spectra of the Eu3+ complex were found to be insensitive to the presence of methylamine gas. Therefore, bromothymol blue, a non-fluorescent pH indicator with an absorbance maximum of deprotonated form close to the Eu3+ emission band was added to the film to provide a non-fluorescent reversible response to different methylamine concentrations, which can be detected by measuring the Eu3+ emission.

Keywords

EN

composites; luminescence; optical materials; thin films

• Publisher: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
• Journal: Progress on Chemistry and Application of Chitin and its Derivatives
• Year: 2017
• Volume: 22
• Pages: 159-165

Contributors

author

Aleksandr Yu Mironenko

• Institute of Chemistry FEBRAS Prosp.100-letiya Vladivostoka, 159, Vladivostok, Russia

author

Aleksandr A. Sergeev

• Institute of Automation and Control Processes FEBRAS Radio Street, 5, Vladivostok, Russia

author

Aleksandr E. Nazirov

• Far Eastern Federal University Sukhanova Street, 8, Vladivostok, Russia

author

Sergey S. Voznesenskiy

• Institute of Automation and Control Processes FEBRAS Radio Street, 5, Vladivostok, Russia

author

Svetlana Yu. Bratskaya

• Institute of Chemistry FEBRAS Prosp.100-letiya Vladivostoka, 159, Vladivostok, Russia

author

Anatoliy G. Mirochnik

• Institute of Chemistry FEBRAS Prosp.100-letiya Vladivostoka, 159, Vladivostok, Russia

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• Document Type: article