Heterobimetallic Ru(II)-Eu(III) complex as chemodosimeter for selective biogenic amine odorants detection in fish sample
| Autor: | Elva N. Y. Lei, Shu-Wai Leung, Chi-Kin Koo, Wai Yeung Wong, Cheuk Fai Stephen Chow, Wing Tak Wong, Hoi-Kuan Kong, Michael H.W. Lam, Brenda K. W. Chiu |
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| Rok vydání: | 2010 |
| Předmět: |
Models
Molecular Biogenic Amines Molecular Conformation Trimethylamine Electrons Chemistry Techniques Analytical Ruthenium Analytical Chemistry Absorption Substrate Specificity chemistry.chemical_compound Aniline Europium Biogenic amine Organometallic Compounds Molecule Organic chemistry Animals chemistry.chemical_classification Biomolecule Fishes Spermidine chemistry Luminescent Measurements Odorants Putrescine Amine gas treating Gases Volatilization |
| Zdroj: | The Education University of Hong Kong |
| ISSN: | 1520-6882 |
| Popis: | Gaseous biogenic amines such as putrescine, spermidine, aniline, and trimethylamine are important biomolecules that play many crucial roles in metabolism and medical diagnostics. A chemodosimetric detection assay has been developed for those gaseous amines by Ru(II)-Eu(III) heterobimetallic complexes, K{[Ru(II)((t)Bubpy)(CN)(4)](2)Eu(III)(H(2)O)(4)} (where (t)Bubpy = 4,4'-di-tert-butyl-2,2'-bipyridine). Synthesis, X-ray crystal characterization, and spectroscopic properties of this Ru(II)-Eu(III) heterobimetallic complex were reported. Binding properties of the Ru(II)-Eu(III) complex with common gases revealed that this complex is very selective to gaseous amine molecules. Sensitivity of this complex toward the amines was found as ∼log k() = 4.5-4.8. Real time monitoring of gaseous biogenic amines was applied to real fish samples (Atlantic mackerel) by studying the spectrofluorimetric responses of the Ru(II)-Eu(III) complex toward different biogenic amine concentration. GC/MS studies were also used as a reference for the studies. A linear spectrofluorimetric response was found toward biogenic amine concentration in real fish samples. This complex was found to respond specifically to those biogenic amines down to 10 ppb. |
| Databáze: | OpenAIRE |
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