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鱼类组织中的碳化合物:一种群型方法

Anastasia D Kudryavtseva¹, Andrey A Shelepchikov^2,3, Elena Ya Mir-Kadyrova²

¹Severtsov Institute of Ecology and Evolution RAS, Leninsky Prosp., 33, Moscow, 119071, Russia. a.kudryavtseva1@gmail.com.

Environmental monitoring and assessment

|February 25, 2025

概括

在生物群中,精确的石油碳化合物分析至关重要. 这项研究引入了一种质谱法,以区分石油和生物化合物,防止过度估计石油泄漏后鱼类中的污染水平.

科学领域:

环境化学环境化学
分析化学分析化学
生态毒理学生态毒理学

背景情况:

生物样本通常含有生物生成化合物,这些化合物会干扰石油碳化合物分析.
准确地确定总石油碳化合物 (TPH) 对于环境监测至关重要,特别是在泄漏后.
由于存在类似的生物生成化合物,现有的方法可能会高估污染.

研究的目的:

开发和实施一种在没有生物干扰的情况下在生物群中确定TPH的方法.
为了准确量化柴油油泄漏后鱼类中的石油污染.
在环境样本中描述石油污染物的分子组成.

主要方法:

使用质谱组型分析与n-基的确定相结合.
分析了碳化合物和异原子化合物含量和分子质量分布.
该方法应用于来自Pyasina河后柴油泄漏的Coregonus沙丁菌样本.

主要成果:

新的方法准确地区分了石油化合物和生物的化合物,防止过高估计.
在Coregonus sardinella中,TPH被确定为3.5μg/g,明显低于总有机化合物含量15.4μg/g.
识别的石油化合物与经过气候变化的中等油分相一致,包括各种芳香和性碳化合物.

结论:

实施的质谱方法有效地解决了TPH分析中的生物干扰.
综合的TPH测量可以导致环境污染的严重高估.
该方法提供了石油污染物的详细表征,有助于来源识别和风险评估.

关键词:

鱼类石油污染鱼类石油污染群组类型分析分析在N-烯酸中,N-烯酸是存在的.诺里尔斯克的泄漏事件在 TPH 和 TPH 之间.在UCM中使用UCM.

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