Heterobimetallic Ru(II)-Eu(III) complex as chemodosimeter for selective biogenic amine odorants detection in fish sample

Cheuk Fai Stephen CHOW, Hoi-Kuan KONG, Shu-Wai LEUNG, Brenda K. W. CHIU, Chi-Kin KOO, Elva N. Y. LEI, Michael H. W. LAM, Wing-Tak WONG, Wai-Yeung WONG

Research output: Contribution to journalArticlespeer-review

35 Citations (Scopus)

Abstract

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 RuII-EuIII heterobimetallic complexes, K{[RuII(tBubpy)(CN) 4]2EuIII(H2O)4} (where tBubpy = 4,4′-di-tert-butyl-2,2′-bipyridine). Synthesis, X-ray crystal characterization, and spectroscopic properties of this Ru II-EuIII heterobimetallic complex were reported. Binding properties of the RuII-EuIII 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 RuII-EuIII 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. Copyright © 2011 The Royal Society of Chemistry.

Original languageEnglish
Pages (from-to)289-296
JournalAnalytical Chemistry
Volume83
Issue number1
Early online dateDec 2010
DOIs
Publication statusPublished - 2011

Citation

Chow, C.-F., Kong, H.-K., Leung, S.-W., Chiu, B. K. W., Koo, C.-K., Lei, E. N. Y., . . . Wong, W.-Y. (2011). Heterobimetallic Ru(II)-Eu(III) complex as chemodosimeter for selective biogenic amine odorants detection in fish sample. Analytical Chemistry, 83(1), 289-296. doi: 10.1021/ac102393f

Fingerprint

Dive into the research topics of 'Heterobimetallic Ru(II)-Eu(III) complex as chemodosimeter for selective biogenic amine odorants detection in fish sample'. Together they form a unique fingerprint.