Laboratory Investigation of Dodecylbenzene Detection in Seawater Via Fluorometric Index of Excitation-emission Matrix Spectra.

IF 2.6 4区化学 Q2 BIOCHEMICAL RESEARCH METHODS Journal of Fluorescence Pub Date : 2024-10-01 DOI:10.1007/s10895-024-03978-1

Jianping Liao, Zhifeng Liu, Weiqi Yang, Chen Tian, Xueyu Wu, Zhiping Zhu, Zhenggang Wang

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Abstract

Oil-filled submarine cables have come to dominate the reliable delivery of electrical power today, but oil leakages still remain a challenge. This work focuses on exploring the detection of dodecylbenzene (DDB) after leakage. DDB can be dispersed as small droplets in seawater, which the diameter of DDB droplets increased from 60 nm to 200 nm with the increase of the concentration from 10 ppm to 1000 ppm. Moreover, excitation-emission matrix (EEM) spectra were employed to investigated the detection of DDB. DDB has characteristic fluorescence peaks located at λ_Ex/λ_Em = 225/350 and 255/350. The FI_o/w value of 50 ppm DDB was 28.869, which was significantly different from simulated seawater low as 1.3926. Contaminants such as metal ions (Cu²⁺, Cd²⁺, Zn²⁺) and organic matter (tetracycline) do not significantly affect the qualitative identification of DDB by EEMs. This study suggests a research basis for exploring the way for detection of DDB.

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通过激发-发射矩阵光谱的荧光指数检测海水中十二烷基苯的实验室研究。

如今，充油海底电缆已成为可靠输送电力的主要方式，但漏油仍是一项挑战。这项工作的重点是探索泄漏后十二烷基苯（DDB）的检测。十二烷基苯能以小液滴的形式分散在海水中，随着浓度从 10 ppm 增加到 1000 ppm，十二烷基苯液滴的直径从 60 nm 增加到 200 nm。此外，还利用激发-发射矩阵（EEM）光谱研究了 DDB 的检测。DDB 的特征荧光峰位于 λEx/λEm = 225/350 和 255/350。50 ppm DDB 的 FIo/w 值为 28.869，与低至 1.3926 的模拟海水有显著差异。金属离子（Cu2+、Cd2+、Zn2+）和有机物（四环素）等污染物对 EEMs 对 DDB 的定性鉴定没有明显影响。这项研究为探索 DDB 的检测方法提供了研究基础。

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来源期刊

Journal of Fluorescence 化学-分析化学

CiteScore

4.60

自引率

7.40%

发文量

203

审稿时长

5.4 months

期刊介绍： Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.