Method for the purification of polybrominated diphenyl ethers in sediment for compound-specific isotope analysis

Zeng, Yan-Hong; Luo, Xiao-Jun; Chen, Hua-Shan; Chen, She-Jun; Wu, Jiangping; Mai, Bi-Xian

doi:10.1016/j.talanta.2013.02.036

Cited by 11 publications

(7 citation statements)

References 27 publications

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“…The sediments were freeze-dried, pulverized, and homogenized by sieving through an 80 mesh stainless steel sieve. The method used to extract and purify sediment samples for PBDE quantification and CSIA were similar to those described in previous studies, ,, with minor modifications, and detailed in the SI.…”

Section: Methodsmentioning

confidence: 99%

In Situ Microbial Degradation of PBDEs in Sediments from an E-Waste Site as Revealed by Positive Matrix Factorization and Compound-Specific Stable Carbon Isotope Analysis

Huang

Zeng

Luo

et al. 2019

Environ. Sci. Technol.

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In the present study, positive matrix factorization (PMF) and compound-specific isotope analysis were used to investigate the in situ biodegradation of polybrominated diphenyl ethers (PBDEs) in sediment cores collected from a pond at an e-waste recycling site in South China. The potential microorganisms relevant to the degradation of PBDEs were also assessed to aid in the understanding of in situ biodegradation. The PMF results suggested that reductive debromination took place in the sediments. The debromination signal (ratio of the concentration of factor 5 (PMF result) to the total PBDE content) was positively correlated with the relative abundance of Dehalococcoidetes at different core depths. The clear 13 C enrichment of five PBDE congeners (BDE 28,47,49, 99, and 153) with increasing core depth indicated that a measurable change in isotope fractionation might have occurred during PBDE biodegradation. The in situ biodegradation was further validated by the widespread detection of mono-BDE congeners (BDE 2, BDE 3) and diphenyl ether in the sediments. This study provides new evidence to enhance our understanding of the in situ biodegradation of PBDEs and suggests that the extensive removal of bromine from PBDEs was mediated by indigenous microorganisms at the e-waste site.

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Section: Methodsmentioning

confidence: 99%

In Situ Microbial Degradation of PBDEs in Sediments from an E-Waste Site as Revealed by Positive Matrix Factorization and Compound-Specific Stable Carbon Isotope Analysis

Huang

Zeng

Luo

et al. 2019

Environ. Sci. Technol.

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“…Therefore, extensive purification steps are required to attain high-purity extracts before CSIA. The method for purification of PCBs in fish for compound-specific isotope analysis was based on our previous studies (Zeng et al, 2012(Zeng et al, , 2013a, with minor modifications. Briefly, the remainder of the fish carcass samples used for stable carbon isotope analysis was Soxhelt-extracted with 350 mL Hex/Acetone (1:1 v/v) for 72 h. The extract was concentrated to approximately 1 mL by rotary evaporator and the solvent exchanged with hexane (10 mL).…”

Section: Sample Preparation and Extractionmentioning

confidence: 99%

Tracing the biotransformation of polychlorinated biphenyls (PCBs) in common carp (Cryprinus carpio): Enantiomeric fraction and compound-specific stable carbon isotope analyses

et al. 2016

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“…Zagklis and Paraskeva, 19 for example, optimized a solvent extraction process to purify phenolic compounds, followed by fractionation with membrane filtration and adsorption/desorption. Zeng et al 20 improved Soxhlet extraction for purification of polybrominated diphenyl ethers (PBDEs). Iliescu et al 21 purified a polyphosphonate with washing in distilled water and by the dissolution/precipitation method.…”

Section: Introductionmentioning

confidence: 99%

Nanotechnologies for Preparation and Application of Metallic Nickel

Saldan¹,

Dobrovetska²,

Makota³

2022

ChChT

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Method for the purification of polybrominated diphenyl ethers in sediment for compound-specific isotope analysis

Cited by 11 publications

References 27 publications

In Situ Microbial Degradation of PBDEs in Sediments from an E-Waste Site as Revealed by Positive Matrix Factorization and Compound-Specific Stable Carbon Isotope Analysis

In Situ Microbial Degradation of PBDEs in Sediments from an E-Waste Site as Revealed by Positive Matrix Factorization and Compound-Specific Stable Carbon Isotope Analysis

Tracing the biotransformation of polychlorinated biphenyls (PCBs) in common carp (Cryprinus carpio): Enantiomeric fraction and compound-specific stable carbon isotope analyses

Nanotechnologies for Preparation and Application of Metallic Nickel

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