- Tytuł:
- Highly sensitive chitosan-based optical fluorescent sensor for gaseous methylamine detection
- Autorzy:
-
Mironenko, Aleksandr Yu
Sergeev, Aleksandr A.
Nazirov, Aleksandr E.
Voznesenskiy, Sergey S.
Bratskaya, Svetlana Yu.
Mirochnik, Anatoliy G. - Powiązania:
- https://bibliotekanauki.pl/articles/1034571.pdf
- Data publikacji:
- 2017
- Wydawca:
- Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
- Tematy:
-
composites
luminescence
optical materials
thin films - Opis:
- 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.
- Źródło:
-
Progress on Chemistry and Application of Chitin and its Derivatives; 2017, 22; 159-165
1896-5644 - Pojawia się w:
- Progress on Chemistry and Application of Chitin and its Derivatives
- Dostawca treści:
- Biblioteka Nauki
Artykuł