Murray D A, Lockhart W L
Department of Fisheries and Oceans, Winnipeg, Manitoba, Canada.
J Assoc Off Anal Chem. 1988 Nov-Dec;71(6):1086-9.
Several volatile organic compounds associated with petroleum fuels (mainly alkylated benzenes) were extracted from spiked fish tissue samples with a stream of air, trapped on charcoal, eluted with a solvent, and analyzed by gas chromatography. These volatile compounds are among the most water-soluble components of crude oils and petroleum products, and they have been associated with tainting in fish tissues. Recoveries for these compounds were about 90% when spiked directly either onto traps or into fish tissues although naphthalene desorbed poorly from the charcoal; recoveries of this compound were about 50%. Relative standard deviations (RSD) for most recoveries of spiked samples were in the 2-10% range based on 6 samples analyzed in duplicate. However, when live fish were contaminated experimentally by adding the aromatic compounds to the aquarium water, the RSDs were higher (10-30%).
通过空气流从加标鱼组织样本中提取了几种与石油燃料相关的挥发性有机化合物(主要是烷基苯),将其捕集在木炭上,用溶剂洗脱,然后通过气相色谱法进行分析。这些挥发性化合物是原油和石油产品中水溶性最强的成分之一,并且它们与鱼组织中的异味有关。当直接加标到捕集阱或鱼组织中时,这些化合物的回收率约为90%,尽管萘从木炭上的解吸效果不佳;该化合物的回收率约为50%。基于6个重复分析的样品,加标样品的大多数回收率的相对标准偏差(RSD)在2-10%范围内。然而,当通过向水族箱水中添加芳香族化合物对活鱼进行实验性污染时,RSD更高(10-30%)。