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Jiang S, Wan M, Lin K, Chen Y, Wang R, Tan L, Wang J. Spatiotemporal distribution, source analysis and ecological risk assessment of polychlorinated biphenyls (PCBs) in the Bohai Bay, China. MARINE POLLUTION BULLETIN 2024; 198:115780. [PMID: 38006871 DOI: 10.1016/j.marpolbul.2023.115780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 11/02/2023] [Accepted: 11/11/2023] [Indexed: 11/27/2023]
Abstract
As a class of persistent organic pollutants (POPs), the spatial and temporal distribution of polychlorinated biphenyls (PCBs) in seawater is important for environmental assessment. Surface water samples were collected from 35 stations during summer and 36 stations during autumn of 2020 in the Bohai Bay. The concentration, composition, distribution and sources of PCBs were analyzed to assess the ecological impact of PCBs. The average concentration of ∑18PCBs was 124.6 ng/L (range of 28.1-445.5 ng/L) in summer and 122.8 ng/L (range of 21.0-581.4 ng/L) in autumn. PCBs in surface seawater of the Bohai Bay showed high near-shore and low far-shore characteristics, indicating the serious influence of land-based sources such as port activities and river inputs. Proportion analysis showed that Tetra-PCBs and Penta-PCBs were the major constituents in most stations. It was assessed as moderate and high risk (MRQ > 0.1) by mixture risk quotient (MRQ) and concentration addition (CA) model in surface seawater of the Bohai Bay. Principal component analysis (PCA) was used to explain the sources of PCBs in the Bohai Bay. PCBs in the Bohai Bay may come from commercial PCBs and their incineration products, municipal landfills, wood and coal combustion, and industrial activities, etc.
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Affiliation(s)
- Shan Jiang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Mengmeng Wan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Kun Lin
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Yanshan Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Rui Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; Battery Technology Company, Wanhua Chemical Group Co., Ltd. Yantai 265503, China
| | - Liju Tan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
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Pang T, Chen X, Hu K, Cui Y, Zhao W, Zeng H, Zhang Z, Zhang S. Preparation of Ti 3 C 2 T x MXene based solid-phase microextraction coating for sensitive determination of polychlorinated biphenyls in environmental water samples. J Sep Sci 2021; 44:3398-3406. [PMID: 34265181 DOI: 10.1002/jssc.202100247] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 11/09/2022]
Abstract
In this study, a new Ti3 C2 Tx -coated fiber was synthesized and utilized as coatings for solid-phase microextraction of seven polychlorinated biphenyls. The as-produced multilayered Ti3 C2 Tx MXene was characterized by X-ray diffractometer, thermos-gravimetric analysis, scanning electron microscopy, and energy dispersive spectroscopy. It is noteworthy that the Ti3 C2 Tx showed some attractive features including unique 2D layered structures, large surface area, good hydrophilicity, and rich active recognition sites, endowing it has a high affinity towards the target polychlorinated biphenyls. Subsequently, the affecting parameters on the extraction efficiency of polychlorinated biphenyls were optimized. Under the optimal conditions, a novel method for the analysis of polychlorinated biphenyls in water samples was proposed. The Ti3 C2 Tx -coated fiber-based solid-phase microextraction method showed good linearity (r2 > 0.9928), high enrichment factors (268-442), low limits of detection (0.06-0.15 ng/L), and satisfactory repeatability (RSDs < 7.5%) for the polychlorinated biphenyls. The excellent method recoveries were in the range of 90.0-98.4, 92.0-98.2, and 92.0-98.0% for river water, lake water, and tap water samples, respectively. These results suggested that the proposed Ti3 C2 Tx -coated fiber-based method represents a promising alternative for the analysis of polychlorinated biphenyls.
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Affiliation(s)
- Tiantian Pang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
| | - Xiaohui Chen
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
| | - Kai Hu
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
| | - Yongxia Cui
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
| | - Wenjie Zhao
- School of Chemistry, Chemical and Environmental Engineering, Henan University of Technology, Zhengzhou, P. R. China
| | - Huahui Zeng
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
| | - Zhenqiang Zhang
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
| | - Shusheng Zhang
- Center for Modern Analysis and Gene Sequencing, Zhengzhou University, Zhengzhou, P. R. China
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Timm KN, Perera C, Ball V, Henry JA, Miller JJ, Kerr M, West JA, Sharma E, Broxholme J, Logan A, Savic D, Dodd MS, Griffin JL, Murphy MP, Heather LC, Tyler DJ. Early detection of doxorubicin-induced cardiotoxicity in rats by its cardiac metabolic signature assessed with hyperpolarized MRI. Commun Biol 2020; 3:692. [PMID: 33214680 PMCID: PMC7678845 DOI: 10.1038/s42003-020-01440-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/28/2020] [Indexed: 12/13/2022] Open
Abstract
Doxorubicin (DOX) is a widely used chemotherapeutic agent that can cause serious cardiotoxic side effects culminating in congestive heart failure (HF). There are currently no clinical imaging techniques or biomarkers available to detect DOX-cardiotoxicity before functional decline. Mitochondrial dysfunction is thought to be a key factor driving functional decline, though real-time metabolic fluxes have never been assessed in DOX-cardiotoxicity. Hyperpolarized magnetic resonance imaging (MRI) can assess real-time metabolic fluxes in vivo. Here we show that cardiac functional decline in a clinically relevant rat-model of DOX-HF is preceded by a change in oxidative mitochondrial carbohydrate metabolism, measured by hyperpolarized MRI. The decreased metabolic fluxes were predominantly due to mitochondrial loss and additional mitochondrial dysfunction, and not, as widely assumed hitherto, to oxidative stress. Since hyperpolarized MRI has been successfully translated into clinical trials this opens up the potential to test cancer patients receiving DOX for early signs of cardiotoxicity.
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Affiliation(s)
- Kerstin N Timm
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK.
| | - Charith Perera
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Vicky Ball
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - John A Henry
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Jack J Miller
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Matthew Kerr
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - James A West
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QW, UK
| | - Eshita Sharma
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Dr, Headington, Oxford, OX3 7BN, UK
| | - John Broxholme
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Dr, Headington, Oxford, OX3 7BN, UK
| | - Angela Logan
- MRC Mitochondrial Biology Unit, University of Cambridge, The Keith Peters Building, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0XY, UK
| | - Dragana Savic
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Michael S Dodd
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Julian L Griffin
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QW, UK
| | - Michael P Murphy
- MRC Mitochondrial Biology Unit, University of Cambridge, The Keith Peters Building, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0XY, UK
| | - Lisa C Heather
- Department of Physiology Anatomy and Genetics, University of Oxford, Sherrington Building, Parks Road, Oxford, OX1 3PT, UK
| | - Damian J Tyler
- Oxford Centre for Clinical Magnetic Resonance Research, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
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Aly AA, Górecki T. Green Approaches to Sample Preparation Based on Extraction Techniques. Molecules 2020; 25:E1719. [PMID: 32283595 PMCID: PMC7180442 DOI: 10.3390/molecules25071719] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 12/11/2022] Open
Abstract
Preparing a sample for analysis is a crucial step of many analytical procedures. The goal of sample preparation is to provide a representative, homogenous sample that is free of interferences and compatible with the intended analytical method. Green approaches to sample preparation require that the consumption of hazardous organic solvents and energy be minimized or even eliminated in the analytical process. While no sample preparation is clearly the most environmentally friendly approach, complete elimination of this step is not always practical. In such cases, the extraction techniques which use low amounts of solvents or no solvents are considered ideal alternatives. This paper presents an overview of green extraction procedures and sample preparation methodologies, briefly introduces their theoretical principles, and describes the recent developments in food, pharmaceutical, environmental and bioanalytical chemistry applications.
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Affiliation(s)
- Alshymaa A. Aly
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Menia Governorate 61519, Egypt
| | - Tadeusz Górecki
- Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
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Wang X, Kou H, Wang J, Du T, Teng R, Du X, Lu X. Mesostructured cellular foam solid‐phase microextraction coating for the highly sensitive recognition of polychlorinated biphenyls in water samples. J Sep Sci 2019; 42:2851-2857. [DOI: 10.1002/jssc.201900480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/11/2019] [Accepted: 06/20/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Xuemei Wang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou P. R. China
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province Lanzhou P. R. China
| | - Haixia Kou
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou P. R. China
| | - Juan Wang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou P. R. China
| | - Tongtong Du
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou P. R. China
| | - Ruiju Teng
- Lanzhou Industrial Research Institute Lanzhou P. R. China
| | - Xinzhen Du
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou P. R. China
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province Lanzhou P. R. China
| | - Xiaoquan Lu
- College of Chemistry and Chemical EngineeringNorthwest Normal University Lanzhou P. R. China
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province Lanzhou P. R. China
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