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Lead, Mercury and Cadmium in Fish and Shellfish from the Indian Ocean and Red Sea (African Countries): Public Health Challenges. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8050344] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The main aim of this review was to assess the incidence of Pb, Hg and Cd in seafood from African countries on the Indian and the Red Sea coasts and the level of their monitoring and control, where the direct consumption of seafood without quality control are frequently due to the poverty in many African countries. Some seafood from African Indian and the Red Sea coasts such as mollusks and fishes have presented Cd, Pb and Hg concentrations higher than permitted limit by FAOUN/EU regulations, indicating a possible threat to public health. Thus, the operationalization of the heavy metals (HM) monitoring and control is strongly recommended since these countries have laboratories with minimal conditions for HM analysis.
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Simultaneous multi-elemental speciation of As, Hg and Pb by inductively coupled plasma mass spectrometry interfaced with high-performance liquid chromatography. Food Chem 2020; 313:126119. [DOI: 10.1016/j.foodchem.2019.126119] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 12/22/2019] [Accepted: 12/23/2019] [Indexed: 12/12/2022]
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Niu Y, Luo G, Xie H, Zhuang Y, Wu X, Li G, Sun W. Photoelectrochemical aptasensor for lead(II) by exploiting the CdS nanoparticle-assisted photoactivity of TiO 2 nanoparticles and by using the quercetin-copper(II) complex as the DNA intercalator. Mikrochim Acta 2019; 186:826. [PMID: 31754803 DOI: 10.1007/s00604-019-3951-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/17/2019] [Indexed: 01/27/2023]
Abstract
A photoelectrochemical (PEC) aptasensor for Pb(II) detection is described. A nanocomposite consisting of CdS (2.5 μm) and TiO2 nanoparticles (10 nm) was used as a photoactive material, and gold nanochains (Au NCs) as the support for immobilization of the Pb(II)-binding aptamer. The quercetin-copper(II) complex was further employed as the intercalator for the improvement of the photoactivity by embedding it into dsDNA. In the presence of Pb(II), a Pb(II)-stabilized G-quadruplex was formed between Pb(II) and DNA S1. This is accompanied by unwinding of the dsDNA and the release of the quercetin-copper(II) complex from the surface of the sensor. This results in a decrease of the photocurrent that drops linearly from 5.0 × 10-12 to 1.0 × 10-8 mol·L-1 Pb(II) concentration range with a detection limit of 1.6 × 10-12 mol·L-1. The method was applied to the determination of Pb(II) in various samples and gave satisfactory results. Graphical abstractA photoelectrochemical aptasensor was fabricated for the detection of Pb(II) based on CdS-TiO2 nanocomposite modified indium tin oxide (ITO) electrode. Gold nanochains (AuNCs) were used as anchor to immobilize the aptamers S1 and S2 that form a double helix structure by DNA hybridization. After embedding of quercetin-copper(II) complex as intercalator and electron donor, the concentrations of Pb(II) were determined by the changes of photocurrents.
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Affiliation(s)
- Yanyan Niu
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Guiling Luo
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Hui Xie
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Yujiao Zhuang
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Xianqun Wu
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China
| | - Guangjiu Li
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Wei Sun
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, People's Republic of China.
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Wang HB, Ma LH, Fang BY, Zhao YD, Hu XB. Graphene oxide-assisted Au nanoparticle strip biosensor based on GR-5 DNAzyme for rapid lead ion detection. Colloids Surf B Biointerfaces 2018; 169:305-312. [DOI: 10.1016/j.colsurfb.2018.05.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 05/03/2018] [Accepted: 05/09/2018] [Indexed: 10/16/2022]
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Chen J, Fu F, Wu S, Wang J, Wang Z. Simultaneous detection of zinc dimethyldithiocarbamate and zinc ethylenebisdithiocarbamate in cabbage leaves by capillary electrophoresis with inductively coupled plasma mass spectrometry. J Sep Sci 2017; 40:3898-3904. [DOI: 10.1002/jssc.201700455] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 07/14/2017] [Accepted: 07/20/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jinfa Chen
- The Key Laboratory of Environment and Health; Universities and Colleges in Fujian, School of Public Health, Fujian Medical University; Fuzhou P. R. China
| | - Fengfu Fu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety; Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety; Department of Chemistry; Fuzhou University; Fuzhou P. R. China
| | - Siying Wu
- The Key Laboratory of Environment and Health; Universities and Colleges in Fujian, School of Public Health, Fujian Medical University; Fuzhou P. R. China
| | - Jing Wang
- The Key Laboratory of Environment and Health; Universities and Colleges in Fujian, School of Public Health, Fujian Medical University; Fuzhou P. R. China
| | - Zongwen Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection; Fujian Agriculture and Forestry University; Fuzhou P. R. China
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Jiang Y, He MY, Zhang WJ, Luo P, Guo D, Fang X, Xu W. Recent advances of capillary electrophoresis-mass spectrometry instrumentation and methodology. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.05.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Chiocchetti G, Jadán-Piedra C, Vélez D, Devesa V. Metal(loid) contamination in seafood products. Crit Rev Food Sci Nutr 2017; 57:3715-3728. [DOI: 10.1080/10408398.2016.1161596] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Gabriela Chiocchetti
- Instituto de Agroquímica y Tecnología de los Alimentos, Paterna, Valencia, Spain
| | - Carlos Jadán-Piedra
- Instituto de Agroquímica y Tecnología de los Alimentos, Paterna, Valencia, Spain
| | - Dinoraz Vélez
- Instituto de Agroquímica y Tecnología de los Alimentos, Paterna, Valencia, Spain
| | - Vicenta Devesa
- Instituto de Agroquímica y Tecnología de los Alimentos, Paterna, Valencia, Spain
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Týčová A, Ledvina V, Klepárník K. Recent advances in CE-MS coupling: Instrumentation, methodology, and applications. Electrophoresis 2016; 38:115-134. [DOI: 10.1002/elps.201600366] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 08/30/2016] [Accepted: 08/30/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Anna Týčová
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - Vojtěch Ledvina
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - Karel Klepárník
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
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Species characteristics of lead in sea foods collected from coastal water of Fujian, Southeastern of China. Sci Rep 2016; 6:33294. [PMID: 27624560 PMCID: PMC5022019 DOI: 10.1038/srep33294] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 08/24/2016] [Indexed: 11/09/2022] Open
Abstract
Various sea foods including fish, shellfish and shrimp were collected from different coastal areas of Fujian in China, and their Pb species characteristics were investigated in detail. The results indicated that there are two different species characteristics of Pb existing in sea food samples. About half of samples were detected to have only Pb(2+), and another half of samples were detected to have both Pb(2+) and trimethyl lead (TML). The results also revealed that Pb species characteristics in the sea foods rather depend on the species of sea food than the sampling area. In comparison with shellfish/shrimp samples, fish samples have higher concentrations of TML and Pb(2+). Especially, the average concentration of TML in the TML-detected fish samples is about 3 times of that in the TML-detected shellfish/shrimp samples, indicating that fish has stronger ability to uptake and accumulate TML. The concentrations of total lead in all samples are lower than the maximum allowable limit of national standard, suggesting that the sea foods collected from Fujian are safe for consumption. By considering that TAL has more toxicity than Pb(2+), the effect of TML in sea foods on the human health should be paid more attention in the future.
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Cheng C, Jiang T, Han J, Lv K, Hu S, Wang X. Capillary electrophoresis coupled with in-column fiber-optic laser-induced fluorescence detection for the rapid separation of neodymium. Electrophoresis 2016; 37:2657-2662. [PMID: 27346878 DOI: 10.1002/elps.201600215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 06/18/2016] [Accepted: 06/20/2016] [Indexed: 01/20/2023]
Abstract
In this study, in-column fiber-optic (ICFO) laser-induced fluorescence (LIF) detection technique is coupled with capillary electrophoresis (CE) for the rapid separation of neodymium for the first time. The effects of buffer concentration, buffer pH, and separation voltage on the CE behaviors, including electrophoretic efficiency and detection sensitivity, are investigated in detail. Under the optimal condition determined in this study (15 mM borate buffer, pH 10.50, separation voltage 24 kV), neodymium could be separated effectively from the neighboring lanthanides (praseodymium and samarium) within several minutes, and the limit of detection for neodymium is estimated to be at the ppt level. The ICFO-LIF-CE system assembled in this study exhibits unique performance characteristics such as low cost and flexibility. Meanwhile, the separation efficiency and detection sensitivity of the assembled CE system are comparable to or somewhat better than those obtained in the previous traditional CE systems, indicating the potential of the assembled CE system for practical applications in the fields of spent nuclear fuel analysis, nuclear waste disposal/treatment, and nuclear forensics.
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Affiliation(s)
- Changming Cheng
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, P. R. China
| | - Tao Jiang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, P. R. China
| | - Jun Han
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, P. R. China
| | - Kai Lv
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, P. R. China
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, P. R. China.
| | - Xiaolin Wang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, P. R. China.
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A “turn-on” fluorescence assay for lead(II) based on the suppression of the surface energy transfer between acridine orange and gold nanoparticles. Mikrochim Acta 2016. [DOI: 10.1007/s00604-015-1738-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Toxic trace elements at gastrointestinal level. Food Chem Toxicol 2015; 86:163-75. [PMID: 26482641 DOI: 10.1016/j.fct.2015.10.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/08/2015] [Accepted: 10/11/2015] [Indexed: 11/22/2022]
Abstract
Many trace elements are considered essential [iron (Fe), zinc (Zn), copper (Cu)], whereas others may be harmful [lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As)], depending on their concentration and chemical form. In most cases, the diet is the main pathway by which they enter our organism. The presence of toxic trace elements in food has been known for a long time, and many of the food matrices that carry them have been identified. This has led to the appearance of legislation and recommendations concerning consumption. Given that the main route of exposure is oral, passage through the gastrointestinal tract plays a fundamental role in their entry into the organism, where they exert their toxic effect. Although the digestive system can be considered to be of crucial importance in their toxicity, in most cases we do not know the events that occur during the passage of these elements through the gastrointestinal tract and of ascertaining whether they may have some kind of toxic effect on it. The aim of this review is to summarize available information on this subject, concentrating on the toxic trace elements that are of greatest interest for organizations concerned with food safety and health: Pb, Cd, Hg and As.
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Chen Y, Chen J, Xi Z, Yang G, Wu Z, Li J, Fu F. Simultaneous analysis of Cr(III), Cr(VI), and chromium picolinate in foods using capillary electrophoresis-inductively coupled plasma mass spectrometry. Electrophoresis 2015; 36:1208-15. [DOI: 10.1002/elps.201500015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 11/09/2022]
Affiliation(s)
- YiQuan Chen
- Department of Chemistry, Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety; Fuzhou University; Fuzhou Fujian P. R. China
| | - JinFa Chen
- Department of Chemistry, Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety; Fuzhou University; Fuzhou Fujian P. R. China
| | - Zhiming Xi
- Department of Chemistry, Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety; Fuzhou University; Fuzhou Fujian P. R. China
| | - Guidi Yang
- Department of Plant Protection; Fujian Agriculture and Forest University; Fuzhou Fujian P. R. China
| | - Zujian Wu
- Department of Plant Protection; Fujian Agriculture and Forest University; Fuzhou Fujian P. R. China
| | - JianRong Li
- Food Safety Key Laboratory of Liaoning Province; Bohai University; Jinzhou Liaoning P. R. China
| | - FengFu Fu
- Department of Chemistry, Key Laboratory of Analysis and Detection for Food Safety of Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety; Fuzhou University; Fuzhou Fujian P. R. China
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