Preprint Article Version 1 This version is not peer-reviewed

Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry

Version 1 : Received: 16 February 2018 / Approved: 17 February 2018 / Online: 17 February 2018 (11:39:21 CET)

A peer-reviewed article of this Preprint also exists.

Finnegan, C.; Ryan, D.; Enright, A.-M.; Garcia-Cabellos, G. Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry. Molecules 2018, 23, 627. Finnegan, C.; Ryan, D.; Enright, A.-M.; Garcia-Cabellos, G. Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry. Molecules 2018, 23, 627.

Journal reference: Molecules 2018, 23, 627
DOI: 10.3390/molecules23030627

Abstract

Tributyltin (TBT) is one of the most toxic anthropogenic compounds introduced into the marine environment. Despite its global ban in 2008, TBT is still a problem of great concern due to its high affinity for particulate matter, providing a direct and potentially persistent route of entry into benthic sediments. Bioremediation strategies may constitute an alternative approach to conventional physicochemical methods, benefiting from the microorganism’s potential to metabolize anthropogenic compounds. In this work, a simple, precise and accurate static headspace gas chromatography method was developed to investigate the ability of TBT degrading microbes in sedimentary microcosms over a period of 120 days. The proposed method was validated for linearity, repeatability, accuracy, specificity, limit of detection and limit of quantification. The method was subsequently successfully applied for the detection and quantification of TBT and degrading compounds in sediment samples on day 0, 30, 60, 90 and 120 of the experiment employing the principles of green chemistry. On day 120 the concentration of TBT remaining in the microcosms ranged between 91.91 ng/g wet wt for the least effective microbial inoculant to 52.73 ng/g wet wt for the most effective microbial inoculant from a stating concentration of 100 ng/g wet wt.

Subject Areas

Bioremediation; gas chromatography; green chemistry; mass spectrometry; microcosm; organotin analysis; static headspace; tributyltin (TBT)

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