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Mass spectrometric analysis for carboxylic acids as viable markers of petroleum hydrocarbon biodegradation

Abstract : The characterization of metabolites, which are considered markers of bacterial degradation of hydrocarbons, is gaining in importance. Over the years, carboxylic acids have served as useful indicators of aerobic and anaerobic hydrocarbon biodegradation. This interest has been accompanied by the extensive and robust development of analytical methods for monitoring, untargeted identification, and specific and sensitive determination of carboxylic acids in complex matrices. This review discusses critically the state-of-the-art of mass spectrometry as a reliable analytical technique to identify and quantify carboxylic acid metabolites. Attention is paid to sample pre-treatment, selective group pre-concentration, and gas and liquid chromatography preceding mass spectrometry to alleviate matrix effects and ionization discrimination. Recent specific applications of mass spectrometry in monitoring carboxylic acids for assessing hydrocarbon biodegradation are reviewed. Presently, no single technique is sufficient for holistic profiling of carboxylic acids. The direct characterization of carboxylic acids by mass spectrometry is the ultimate goal but despite recent significant developments, challenges persist
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Submitted on : Thursday, September 1, 2022 - 11:18:48 AM
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Kevin Iyere Ehiosun, Regis. Grimaud, Ryszard Lobinski. Mass spectrometric analysis for carboxylic acids as viable markers of petroleum hydrocarbon biodegradation. Trends in Environmental Analytical Chemistry, Elsevier, 2022, 35, pp.e00172. ⟨10.1016/j.teac.2022.e00172⟩. ⟨hal-03766535⟩



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