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 language | English |
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Pages (from-to) | 289-296 |
Journal | Analytical Chemistry |
Volume | 83 |
Issue number | 1 |
Early online date | Dec 2010 |
DOIs | |
Publication status | Published - 2011 |