Heterobimetallic Ru(II)鈭扙u(III) Complex as Chemodosimeter for Selective Biogenic Amine Odorants Detection in Fish Sample

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• 作者：Cheuk-Fai 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
• 刊名：Analytical Chemistry
• 出版年：2011
• 出版时间：January 1, 2011
• 年：2011
• 卷：83
• 期：1
• 页码：289-296
• 全文大小：367K
• 年卷期：v.83,no.1(January 1, 2011)
• ISSN：1520-6882

文摘

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鈭扙u^III heterobimetallic complexes, K{[Ru^II(^tBubpy)(CN)₄]₂Eu^III(H₂O)₄} (where ^tBubpy = 4,4鈥?di-tert-butyl-2,2鈥?bipyridine). Synthesis, X-ray crystal characterization, and spectroscopic properties of this Ru^II鈭扙u^III heterobimetallic complex were reported. Binding properties of the Ru^II鈭扙u^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鈭?.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鈭扙u^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.