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Portet-Koltalo F, Tian Y, Berger-Brito I, Benamar A, Boulangé-Lecomte C, Machour N. Determination of multi-class polyaromatic compounds in sediments by a simple modified matrix solid phase dispersive extraction. Talanta 2021; 221:121601. [PMID: 33076132 DOI: 10.1016/j.talanta.2020.121601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
A simple, efficient matrix solid phase dispersive extraction (MSPD) method was optimised to analyse simultaneously polycyclic aromatic hydrocarbons (PAHs) and polychlorobiphenyls (PCBs) from sediments, and was compared to microwave-assisted extraction (MAE). New dispersing agents were tested to improve MSPD extraction. 3-chloropropyl-bonded silica particles, in addition to Florisil, increased significantly the polyaromatics desorption capacity. A compromise was found for eluting both families of compounds from sediments, using a small volume of hexane/acetone. Low procedural detection limits could be reached (0.06-0.22 ng g-1 and 0.3-1.1 ng g-1 for PAHs and PCBs, respectively). Mean total extraction recoveries were good for PAHs (>67%, depending on the sediment) and for PCBs (>89%), with good precision (6-9% and 4-10% inter-day precision for PAHs and PCBs, respectively). Higher recoveries for PCBs could be reached in comparison with formerly developed sonication or Soxhlet extraction methods, but also with MAE. MSPD offered significant decrease of sample amount, of solvent consumption and allowed more efficient cleaning of the sediment matrix, leading to less matrix effects compared to MAE, removing lots of interfering compounds without additional purification step. The robustness of the MSPD methodology could be demonstrated extracting quantitatively sediments from different sources and with various mineralogical characteristics.
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Affiliation(s)
- F Portet-Koltalo
- Normandie University, UNIROUEN, COBRA Laboratory UMR CNRS 6014, 55 Rue Saint Germain, 27000, Evreux, France.
| | - Y Tian
- Normandie University, UNIROUEN, COBRA Laboratory UMR CNRS 6014, 55 Rue Saint Germain, 27000, Evreux, France; Normandie University, ULHN, LOMC Laboratory UMR CNRS 6294, FR CNRS 3730 SCALE, 53 Rue de Prony, 76600, Le Havre, France.
| | - I Berger-Brito
- Normandie University, UNIROUEN, COBRA Laboratory UMR CNRS 6014, 55 Rue Saint Germain, 27000, Evreux, France.
| | - A Benamar
- Normandie University, ULHN, LOMC Laboratory UMR CNRS 6294, FR CNRS 3730 SCALE, 53 Rue de Prony, 76600, Le Havre, France.
| | - C Boulangé-Lecomte
- Normandie University, ULHN, SEBIO Laboratory UMR-I 02, FR CNRS 3730 SCALE, BP 1123, F-76063, Le Havre, France.
| | - N Machour
- Normandie University, UNIROUEN, COBRA Laboratory UMR CNRS 6014, 55 Rue Saint Germain, 27000, Evreux, France.
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Gholami H, Arabi M, Ghaedi M, Ostovan A, Bagheri AR. Column packing elimination in matrix solid phase dispersion by using water compatible magnetic molecularly imprinted polymer for recognition of melamine from milk samples. J Chromatogr A 2019; 1594:13-22. [DOI: 10.1016/j.chroma.2019.02.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 02/01/2019] [Accepted: 02/06/2019] [Indexed: 10/27/2022]
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3
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Yazdanfar N, Shamsipur M, Ghambarian M. Simultaneous extraction of 32 polychlorinated biphenyls by using magnetic carbon nanocomposite based dispersive microextraction, subsequent dispersive liquid-liquid microextraction with two miscible stripping solvents, and quantitation by GC-μECD. Mikrochim Acta 2019; 186:178. [PMID: 30771010 DOI: 10.1007/s00604-019-3235-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/04/2019] [Indexed: 12/14/2022]
Abstract
A highly sensitive new method is described for performing dispersive microextractions. It is making use of a magnetic carbon nanocomposite and two miscible organic solvents. The method was applied to simultaneous extraction of 32 polychlorinated biphenyls (PCBs) prior to their quantitation by gas chromatography with electron capture detection. The effects of pH value of sample for both micro solid phase extraction and dispersive liquid-liquid microextraction, of the amount of sorbent, extraction time, type and volume of the miscible organic solvents and of salt addition were optimized. Figures of merit obtained under optimized conditions (sample solution: 500 ml, volume of disperser solvent, ACN, 1.5 mL; volume of extraction solvent, TCB, 30 μL; extraction time: 50 min, 20 mg magnetic sorbent, centrifuge, 5 min, 4000 rpm), include (a) preconcentration factors between 10,880 and 34,000; (b) repeatabilities of ≤14.9%, (c) detection limits between 0.01 and 0.2 ng kg-1, and (d) linear dynamic ranges from 0.05 to 100 ng kg - 1. The method was applied to the simultaneous analysis of residues in (spiked) real samples of fish, milk, packing sheet, and tap waters. Some of the analytes were found to be present in fish samples. The method is simple, rapid, and more sensitive than any of the previously reported ones. Graphical abstract Schematic presentation of simultaneous extraction of 32 polychlorinated biphenyls (PCBs) by using magnetic carbon nanocomposites (MCNs) based dispersive microextraction (M-SPE), subsequent dispersive liquid-liquid microextraction (DLLME) with two miscible stripping solvents, and quantitation by GC-μECD.
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Affiliation(s)
- Najmeh Yazdanfar
- Iranian Institute of R&D in Chemical Industries(IRDCI) (ACECR), P. O. Box 313751575, Tehran, Iran. .,Department Chemistry
- , Razi University, P. O. Box 6714414971, Kermanshah, Iran.
| | - Mojtaba Shamsipur
- Department Chemistry
- , Razi University, P. O. Box 6714414971, Kermanshah, Iran
| | - Mahnaz Ghambarian
- Iranian Institute of R&D in Chemical Industries(IRDCI) (ACECR), P. O. Box 313751575, Tehran, Iran
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Wei L, Tadesse AW, Wang J. Organohalogenated Contaminants (OHCs) in Surface Sediments and Water of East Dongting Lake and Hong Lake, China. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 76:157-170. [PMID: 30244305 DOI: 10.1007/s00244-018-0564-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
East Dongting Lake and Hong Lake are two typical lakes in the middle watershed of the Yangtze River, China. The differences in the hydrological condition and human activities of the region may result in the differences in concentrations, distribution, and sources of contaminants. The levels, sources, distribution, and ecological risk of OHCs, including 15 OCPs, 7 PCBs, and 7 PBDEs in surface sediments and water from this region, were investigated. OCPs and PCBs were the predominant pollutants in water and sediments samples, respectively. Source analysis showed that HCHs, PBDEs, and PCBs were mainly from the historical input of commercial products, but there were recent discharges of DDT into the water. The spatial distribution of OHCs showed that higher levels of OHCs in sediments and water were found in the sampling sites far away from the estuary of Hong Lake, but such obvious distribution characteristic was not found in East Dongting Lake. TOC played a crucial role in the retention of OCPs in the sediments of Hong Lake, but significant correlation between TOC and OCPs for East Dongting Lake, TOC and PCBs or PBDEs for both lakes were not found. The possible adverse biological effects could be caused by OCPs residues in sediments of both lakes, and it was worse for Hong Lake. The noncarcinogenic and carcinogenic risk assessment of HCHs and DDTs indicated the water quality of both lakes was safe for bathing and drinking. The potential ecotoxicological risks of PBDEs and PCBs of both lakes were rather low.
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Affiliation(s)
- Liangfu Wei
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ababo Workineh Tadesse
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China.
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Gereslassie T, Workineh A, Atieno OJ, Wang J. Determination of Occurrences, Distribution, Health Impacts of Organochlorine Pesticides in Soils of Central China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16010146. [PMID: 30621114 PMCID: PMC6338902 DOI: 10.3390/ijerph16010146] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/23/2018] [Accepted: 01/02/2019] [Indexed: 11/16/2022]
Abstract
Organochlorine pesticides are groups of chemicals applied to prevent pest and insect infestation. This study was aimed at investigating the concentration, potential sources, cancer risk and ecological toxicity of organochlorine pesticides (OCPs) in Huangpi district, Wuhan, China. Eight OCPs in soil samples collected from four land-use types at depths of 0–10 and 10–20 cm were examined. Sample extraction was carried out by solid phase matrix extraction method and analyzed using Agilent gas chromatograph 7890B equipped with electron capture detectors (ECD). The total concentration of OCPs ranged from 0.00–32.7 ng g−1 in the surface and 0.01–100.45 ng g−1 in the subsurface soil layer. Beta hexachlorocyclohexanes (β-HCH) with 2.20 and 7.71 ng g−1 in the surface and subsurface soil layers, respectively, was the dominant compound. The mean concentrations of OCPs in all samples were less than the threshold values for hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethane (DDTs) in China soil. Concentration of OCPs in the four land-use types were in the order of: paddy field > barren land > farmland > plastic greenhouse. Results of composition analysis revealed recent application of lindane as a major and historical use of new technical HCHs as a minor source of HCHs. On the other hand, application of new technical p,p’-DDT is the main source of DDTs in the study area. The estimated lifetime average daily dose, incremental lifetime cancer risks and hazard quotient values revealed that there is less likelihood of carcinogenic and noncarcinogenic health risks on the local residents.
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Affiliation(s)
- Tekleweini Gereslassie
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Department of Pollution Ecology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Ababo Workineh
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Department of Pollution Ecology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Onyango Janet Atieno
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Department of Pollution Ecology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jun Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
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Wang L, Xue C, Zhang Y, Li Z, Liu C, Pan X, Chen F, Liu Y. Soil aggregate-associated distribution of DDTs and HCHs in farmland and bareland soils in the Danjiangkou Reservoir Area of China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:734-742. [PMID: 30228065 DOI: 10.1016/j.envpol.2018.09.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 08/11/2018] [Accepted: 09/03/2018] [Indexed: 06/08/2023]
Abstract
Soil organic matter (SOM) is the principal aggregating agent for soil aggregation and also the main adsorbent for organochlorine pesticides (OCPs) such as dichlorodiphenyltrichloroethane (DDT) and hexachlorocyclohexane (HCH), which may thereby affect OCP distribution in soils subjected to different land use types. However, the potential effects of land use on SOM and OCP distribution patterns in soil aggregates are not well understood. In this study, soils from farmlands and barelands in the Danjiangkou Reservoir area were analyzed to determine the influence of land use on OCP distribution and composition in different aggregate fractions (>3, 1-3, 0.25-1, and <0.25 mm). The results showed that the levels of ∑DDTs ranged from 9.01 to 27.48 with a mean of 14.40 ng g-1, and ∑HCHs ranged from 2.06 to 4.66 with a mean of 3.19 ng g-1 in farmland soils. In comparison, bareland soils were less contaminated, with total DDTs and HCHs fell in the range of 0.75-5.01 ng g-1 and not detected (n.d.)-1.40 ng g-1 respectively. In regard to the distribution patterns in soil aggregates, the residual levels of ∑DDTs and ∑HCHs tended to a certain degree to enrich in microaggregates (<0.25 mm) relative to bulk soils. A further analysis revealed that the enrichment of ∑DDTs and ∑HCHs in microaggregates were mainly attributed to the accumulation of p,p'-DDE and β-HCH. Moreover, SOM was found also enriched in microaggregates. The enrichment of SOM was significantly and positively correlated with these of ∑DDTs, ∑HCHs, and the dominant metabolites (i.e., DDE and β-HCH) in both land use types. Such results indicated that the variations in behavior of OCPs could be linked to the processes of soil aggregate turnover. These findings may help to enrich the theory of soil OCPs sequestration and establish targeted strategies to mitigate their health risks in the environment.
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Affiliation(s)
- Li Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Cheng Xue
- College of Resources and Environment Science, Hebei Agricultural University, Baoding, China
| | - Yushu Zhang
- Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China
| | - Zhiguo Li
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Chuang Liu
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Xia Pan
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Fang Chen
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; China Program, International Plant Nutrition Institute (IPNI), Wuhan, China
| | - Yi Liu
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
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Dynamic microwave assisted extraction coupled with matrix solid phase dispersion for the determination of chlorfenapyr and abamectin in rice by LC-MS/MS. Microchem J 2017. [DOI: 10.1016/j.microc.2017.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Gutiérrez-Valencia TM, García de Llasera MP. On-line MSPD-SPE-HPLC/FLD analysis of polycyclic aromatic hydrocarbons in bovine tissues. Food Chem 2017; 223:82-88. [DOI: 10.1016/j.foodchem.2016.11.099] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 05/13/2016] [Accepted: 11/21/2016] [Indexed: 12/30/2022]
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9
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Li D, Zhu J, Wang M, Bi W, Huang X, Chen DDY. Extraction of trace polychlorinated biphenyls in environmental waters by well-dispersed velvet-like magnetic carbon nitride nanocomposites. J Chromatogr A 2017; 1491:27-35. [DOI: 10.1016/j.chroma.2017.02.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 11/28/2022]
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10
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Lindholm-Lehto PC, Ahkola HSJ, Knuutinen JS. Procedures of determining organic trace compounds in municipal sewage sludge-a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:4383-4412. [PMID: 27966086 DOI: 10.1007/s11356-016-8202-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 12/01/2016] [Indexed: 05/23/2023]
Abstract
Sewage sludge is the largest by-product generated during the wastewater treatment process. Since large amounts of sludge are being produced, different ways of disposal have been introduced. One tempting option is to use it as fertilizer in agricultural fields due to its high contents of inorganic nutrients. This, however, can be limited by the amount of trace contaminants in the sewage sludge, containing a variety of microbiological pollutants and pathogens but also inorganic and organic contaminants. The bioavailability and the effects of trace contaminants on the microorganisms of soil are still largely unknown as well as their mixture effects. Therefore, there is a need to analyze the sludge to test its suitability before further use. In this article, a variety of sampling, pretreatment, extraction, and analysis methods have been reviewed. Additionally, different organic trace compounds often found in the sewage sludge and their methods of analysis have been compiled. In addition to traditional Soxhlet extraction, the most common extraction methods of organic contaminants in sludge include ultrasonic extraction (USE), supercritical fluid extraction (SFE), microwave-assisted extraction (MAE), and pressurized liquid extraction (PLE) followed by instrumental analysis based on gas or liquid chromatography and mass spectrometry.
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Affiliation(s)
- Petra C Lindholm-Lehto
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland.
| | - Heidi S J Ahkola
- Finnish Environment Institute (SYKE), Survontie 9 A, FI-40500, Jyväskylä, Finland
| | - Juha S Knuutinen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
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Wang Z, Ma S, Zhang Q, He S, Li Q, Hu J, Zhang H. Matrix Solid-Phase Dispersion Coupled with High-Performance Liquid Chromatography Diode Array Detection for Simultaneous Determination of Four Lipophilic Constituents from Salvia miltiorrhiza Bunge. J Chromatogr Sci 2016; 55:316-326. [DOI: 10.1093/chromsci/bmw187] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Zhibing Wang
- College of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
- College of Chemistry, Jilin University, Changchun 130012, P.R. China
| | - Siyu Ma
- College of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
| | - Qian Zhang
- College of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
| | - Shuang He
- College of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
| | - Qing Li
- College of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
| | - Jianxue Hu
- College of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, P.R. China
| | - Hanqi Zhang
- College of Chemistry, Jilin University, Changchun 130012, P.R. China
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12
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Optimization of Membrane-Protected Micro-solid-Phase Extraction Coupled with Dispersive Liquid–Liquid Microextraction for Determination of Organochlorine Pesticides in Soil Media. Chromatographia 2016. [DOI: 10.1007/s10337-016-3200-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Roncati L, Termopoli V, Pusiol T. Negative Role of the Environmental Endocrine Disruptors in the Human Neurodevelopment. Front Neurol 2016; 7:143. [PMID: 27625632 PMCID: PMC5003883 DOI: 10.3389/fneur.2016.00143] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 08/19/2016] [Indexed: 11/30/2022] Open
Abstract
The endocrine disruptors (EDs) are able to influence the endocrine system, mimicking or antagonizing hormonal molecules. They are bio-persistent for their degradation resistance in the environment. Our research group has investigated by gas chromatography–mass spectrometry (GC–MS) the EDs presence in 35 brain samples, coming from 27 cases of sudden intrauterine unexplained death syndrome (SIUDS) and 8 cases of sudden infant death syndrome (SIDS), collected by centralization in the last year (2015). More in detail, a mixture of 25 EDs has been subjected to analytical procedure, following standard protocols. Among the target analytes, some organochlorine pesticides, that is α-chlordane, γ-chlordane, heptachlor, p,p-DDE, p,p-DDT, and the two most commonly used organophosphorus pesticides (OPPs), chlorpyrifos and chlorfenvinfos, have been found in seven and three samples, respectively. The analytical procedure used to detect the presence of environmental EDs in cortex samples has been successfully implemented on SIUDS and SIDS victims. The environmental EDs have been found to be able to overcome the placental barrier, reaching also the basal ganglia assigned to the control of the vital functions. This finding, related to the OPPs bio-persistence, implies a conceptual redefinition of the fetal–placental and fetal blood–brain barriers: not real safety barriers but simply time-deferral mechanisms of absorption.
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Affiliation(s)
- Luca Roncati
- Provincial Health Care Services, Institute of Pathology, Santa Maria del Carmine Hospital, Rovereto, Trentino, Italy; Department of Diagnostic and Clinical Medicine and Public Health, University of Modena and Reggio Emilia, Modena, Modena, Italy
| | - Veronica Termopoli
- LC-MS Laboratory, Department of Earth Sciences, Life and Environment (DiSTeVA), University of Urbino , Urbino , Italy
| | - Teresa Pusiol
- Provincial Health Care Services, Institute of Pathology, Santa Maria del Carmine Hospital , Rovereto, Trentino , Italy
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14
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Qin G, Zou K, Li Y, Chen Y, He F, Ding G. Pesticide residue determination in vegetables from western China applying gas chromatography with mass spectrometry. Biomed Chromatogr 2016; 30:1430-40. [PMID: 26864471 DOI: 10.1002/bmc.3701] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/01/2016] [Accepted: 02/05/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Guofu Qin
- Xi’an Center for Disease Control and Prevention; 599 Xiying Road Xi’an 710054 China
- Department of Radiation Biology, Faculty of Preventive Medicine; The Fourth Military Medical University; 169 Changle West Road Xi′an 710032 China
| | - Keting Zou
- Xi’an Center for Disease Control and Prevention; 599 Xiying Road Xi’an 710054 China
| | - Yongbo Li
- Xi’an Center for Disease Control and Prevention; 599 Xiying Road Xi’an 710054 China
| | - Yan Chen
- Xi’an Center for Disease Control and Prevention; 599 Xiying Road Xi’an 710054 China
| | - Fengrui He
- Xi’an Center for Disease Control and Prevention; 599 Xiying Road Xi’an 710054 China
| | - Guirong Ding
- Department of Radiation Biology, Faculty of Preventive Medicine; The Fourth Military Medical University; 169 Changle West Road Xi′an 710032 China
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15
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Grześkowiak T, Czarczyńska-Goślińska B, Zgoła-Grześkowiak A. Current approaches in sample preparation for trace analysis of selected endocrine-disrupting compounds: Focus on polychlorinated biphenyls, alkylphenols, and parabens. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.07.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Gillio-Meina C, Zielke HR, Fraser DD. Translational Research in Pediatrics IV: Solid Tissue Collection and Processing. Pediatrics 2016; 137:peds.2015-0490. [PMID: 26659457 DOI: 10.1542/peds.2015-0490] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/05/2015] [Indexed: 11/24/2022] Open
Abstract
Solid tissues are critical for child-health research. Specimens are commonly obtained at the time of biopsy/surgery or postmortem. Research tissues can also be obtained at the time of organ retrieval for donation or from tissue that would otherwise have been discarded. Navigating the ethics of solid tissue collection from children is challenging, and optimal handling practices are imperative to maximize tissue quality. Fresh biopsy/surgical specimens can be affected by a variety of factors, including age, gender, BMI, relative humidity, freeze/thaw steps, and tissue fixation solutions. Postmortem tissues are also vulnerable to agonal factors, body storage temperature, and postmortem intervals. Nonoptimal tissue handling practices result in nucleotide degradation, decreased protein stability, artificial posttranslational protein modifications, and altered lipid concentrations. Tissue pH and tryptophan levels are 2 methods to judge the quality of solid tissue collected for research purposes; however, the RNA integrity number, together with analyses of housekeeping genes, is the new standard. A comprehensive clinical data set accompanying all tissue samples is imperative. In this review, we examined: the ethical standards relating to solid tissue procurement from children; potential sources of solid tissues; optimal practices for solid tissue processing, handling, and storage; and reliable markers of solid tissue quality.
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Affiliation(s)
- Carolina Gillio-Meina
- Translational Research Centre, London, Ontario, Canada; Children's Health Research Institute, London, Ontario, Canada
| | | | - Douglas D Fraser
- Translational Research Centre, London, Ontario, Canada; Children's Health Research Institute, London, Ontario, Canada; Centre for Critical Illness Research, Critical Care Medicine and Pediatrics, Clinical Neurologic Sciences, and Physiology and Pharmacology, Western University, London, Ontario, Canada
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Gandhi D, Tarale P, Naoghare PK, Bafana A, Krishnamurthi K, Arrigo P, Saravanadevi S. An integrated genomic and proteomic approach to identify signatures of endosulfan exposure in hepatocellular carcinoma cells. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 125:8-16. [PMID: 26615145 DOI: 10.1016/j.pestbp.2015.06.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/16/2015] [Accepted: 06/19/2015] [Indexed: 06/05/2023]
Abstract
Present study reports the identification of genomic and proteomic signatures of endosulfan exposure in hepatocellular carcinoma cells (HepG2). HepG2 cells were exposed to sublethal concentration (15μM) of endosulfan for 24h. DNA microarray and MALDI-TOF-MS analyses revealed that endosulfan induced significant alterations in the expression level of genes and proteins involved in multiple cellular pathways (apoptosis, transcription, immune/inflammatory response, carbohydrate metabolism, etc.). Furthermore, downregulation of PHLDA gene, upregulation of ACIN1 protein and caspase-3 activation in exposed cells indicated that endosulfan can trigger apoptotic cascade in hepatocellular carcinoma cells. In total 135 transcripts and 19 proteins were differentially expressed. This study presents an integrated approach to identify the alteration of biological/cellular pathways in HepG2 cells upon endosulfan exposure.
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Affiliation(s)
- Deepa Gandhi
- Environmental Health Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, India
| | - Prashant Tarale
- Environmental Health Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, India
| | - Pravin K Naoghare
- Environmental Health Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, India
| | - Amit Bafana
- Environmental Health Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, India
| | - Kannan Krishnamurthi
- Environmental Health Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, India
| | | | - Sivanesan Saravanadevi
- Environmental Health Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, India.
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18
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19
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Multiscreening determination of organic pollutants in molluscs using matrix solid phase dispersion. J Chromatogr A 2015; 1391:18-30. [DOI: 10.1016/j.chroma.2015.02.072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/25/2015] [Accepted: 02/26/2015] [Indexed: 11/20/2022]
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20
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Guo Y, Kannan K. Analytical Methods for the Measurement of Legacy and Emerging Persistent Organic Pollutants in Complex Sample Matrices. PERSISTENT ORGANIC POLLUTANTS (POPS): ANALYTICAL TECHNIQUES, ENVIRONMENTAL FATE AND BIOLOGICAL EFFECTS 2015. [DOI: 10.1016/b978-0-444-63299-9.00001-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Yun X, Yang Y, Liu M, Wang J. Concentrations and risk assessment of polychlorinated biphenyls and polybrominated diphenyl ethers in surface sediments from the East Lake, China. ECOTOXICOLOGY (LONDON, ENGLAND) 2015; 24:172-80. [PMID: 25336043 DOI: 10.1007/s10646-014-1370-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/11/2014] [Indexed: 05/22/2023]
Abstract
The concentrations of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface sediment samples collected from the East Lake, China in winter 2012 and summer 2013 were analyzed in this study. The total PCB and PBDE concentrations ranged from not detected to 107.1 ng g(-1) dw and from 9.7 to 151.3 ng g(-1) dw, respectively. PCB-28, 101 and 180 were dominant congeners in both winter and summer. BDE-28 (44 %) was the dominant congener in winter and summer, followed by BDE-99 (28 %) and BDE-47 (26 %). The concentrations of PCBs in the sediment samples collected in summer were higher than those in winter, while the concentrations of PBDEs did not show much seasonal variations. Source analysis showed that the PCBs probably originated from urban runoff, industrial pollution and atmospheric deposition, and the PBDEs probably originated from historical usage of penta-BDE mixtures. Potential eco-toxicological risks caused by PCBs were found in about 5 % of the sampling sites; PBDEs had moderate eco-toxicological risk in 80 % sampling sites in the East Lake, China.
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Affiliation(s)
- Xiaoyan Yun
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
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22
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Optimisation of matrix solid-phase dispersion for the determination of Dechlorane compounds in marketed fish. Food Chem 2014; 164:286-92. [DOI: 10.1016/j.foodchem.2014.05.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 04/14/2014] [Accepted: 05/11/2014] [Indexed: 11/19/2022]
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23
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Shi X, Tang Z, Sun A, Zhou L, Zhao J, Li D, Chen J, Pan D. Simultaneous analysis of polychlorinated biphenyls and organochlorine pesticides in seawater samples by membrane-assisted solvent extraction combined with gas chromatography–electron capture detector and gas chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 972:58-64. [DOI: 10.1016/j.jchromb.2014.09.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 09/11/2014] [Accepted: 09/23/2014] [Indexed: 11/27/2022]
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24
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Yun X, Yang Y, Liu M, Wang J. Distribution and ecological risk assessment of organochlorine pesticides in surface sediments from the East Lake, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:10368-10376. [PMID: 24756687 DOI: 10.1007/s11356-014-2893-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/04/2014] [Indexed: 06/03/2023]
Abstract
Organochlorine pesticides (OCPs) are ubiquitous pollutants, and their presence in urban lakes is a concern for human and ecological health. Surface sediments in the East Lake, China, were collected in winter 2012 and summer 2013 to investigate concentrations, distribution patterns, possible sources, and potential ecological risks of OCPs in this area. The total concentrations of 14 OCPs ranged from 6.3 to 400 ng g(-1) dry weight (dw) with an average concentration of 79 ng g(-1) dw. The mean values of hexachlorocyclohexanes (HCHs) (α-, β-, γ-, and δ-HCH) and dichlorodiphenyltrichloroethanes (DDTs) (p,p'-DDE, p,p'-DDD, and p,p'-DDT) were 36 and 7.6 ng g(-1) dw, accounting for 45 and 10 % of the total OCPs, respectively. The concentrations of OCPs in sediment samples collected in winter were significantly higher than those in summer, especially the HCHs, of which in winter were two times greater than summer. Composition analyses indicated that DDTs and endosulfan were mainly from historical contribution. Historical use of technical HCH and new input of lindane were probably the source of HCHs in the East Lake. Most sampling sites of HCHs and DDTs were found to have the potential ecological risk based on levels specified in the sediment quality standards.
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Affiliation(s)
- Xiaoyan Yun
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
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25
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Petridis NP, Sakkas VA, Albanis TA. Chemometric optimization of dispersive suspended microextraction followed by gas chromatography–mass spectrometry for the determination of polycyclic aromatic hydrocarbons in natural waters. J Chromatogr A 2014; 1355:46-52. [DOI: 10.1016/j.chroma.2014.06.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 11/25/2022]
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26
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Synaridou MES, Sakkas VA, Stalikas CD, Albanis TA. Evaluation of magnetic nanoparticles to serve as solid-phase extraction sorbents for the determination of endocrine disruptors in milk samples by gas chromatography mass spectrometry. J Chromatogr A 2014; 1348:71-9. [PMID: 24837417 DOI: 10.1016/j.chroma.2014.04.092] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/10/2014] [Accepted: 04/26/2014] [Indexed: 11/18/2022]
Abstract
A rapid magnetic solid-phase extraction (MSPE) is proposed based on C18-functionalized magnetic silica nanoparticles as sorbents, for the determination of endocrine disruptors - 20 organochlorine pesticides and 6 polychlorinated biphenyls - in milk samples. Magnetic nanoparticles are characterized by several techniques, such as Scanning Electron Microscopy, X-Ray diffraction, Brunauer-Emmett-Teller and Fourier transform-infrared. The MSPE is performed by dispersion of the Fe3O4@SiO2@C18 nanoparticles in milk samples with sonication, after protein precipitation. Then, the sorbent is collected by applying an external magnetic field and the analytes are desorbed by n-hexane. Several parameters affecting the extraction efficiency of target analytes by the magnetic nanoparticles are investigated, including washing and elution solvents, amount of sorbents, time of extraction and elution, sample and elution solvent volume. The proposed method is optimized by means of experimental design and response surface methodology. When coupled with gas chromatography-mass spectrometry detection and under optimum extraction conditions, average recoveries of target analytes are found to be in the range of 79% to 116%. The proposed MSPE-GC-MS analytical method has a linear calibration curve for all target analytes with coefficients of determination to range from 0.9950 to 0.9999. The limits of quantification are found to be between 0.2 and 1μg/L ensuring compliance with the maximum residue limits established by European Commission and Codex Alimentarius, for OCPs and PCBs residues in milk. The proposed method is applied to the determination of target analytes in milk samples from local markets.
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Affiliation(s)
- Maria-Evangelia S Synaridou
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.
| | - Vasilios A Sakkas
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.
| | - Constantine D Stalikas
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.
| | - Triantafyllos A Albanis
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.
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27
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Zuo HG, Zhu JX, Zhan CR, Tang GY, Guo P, Wei YL, Zeng HL, Yang H. A method developed for determination of heptachlor and its metabolites from pork. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:2399-2412. [PMID: 24337977 DOI: 10.1007/s10661-013-3547-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 11/12/2013] [Indexed: 06/03/2023]
Abstract
A new method has been developed to determine heptachlor and its metabolites heptachlor-exo-epoxide and heptachlor-endo-epoxide in pork. The pork samples were extracted with acetone-n-hexane (2:8, V:V) and cleaned up by gel permeation chromatography and florisil solid-phase extraction cartridge. The extract was then determined by gas chromatography equipped with electron capture detector (GC-ECD), followed by validation using gas chromatography-mass spectrometry (GC-MS) with negative chemical ionization. Linearity of calibration curves ranged from 0.01 to 0.5 mg L(-1), with correlation coefficients of more than 0.9980 for GC-ECD and GC-MS, respectively. At spiked concentrations of 0.01, 0.05, and 0.1 mg kg(-1), the average recovery and relative standard deviation values were 87.1-102.2 and 4.0-11.3%, respectively. The limit of quantification for each analyte was 0.01 mg kg(-1), which satisfied the current maximum residue limit permitted in pork. Our results showed that the method developed was successfully used to determine heptachlor and heptachlor epoxide residues in real pork samples.
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Affiliation(s)
- Hai Gen Zuo
- Jiangsu Key Laboratory of Pesticide Science, College of Science, Nanjing Agricultural University, Nanjing, 210095, China
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28
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Cappiello A, Famiglini G, Palma P, Termopoli V, Lavezzi AM, Matturri L. Determination of selected endocrine disrupting compounds in human fetal and newborn tissues by GC-MS. Anal Bioanal Chem 2014; 406:2779-88. [DOI: 10.1007/s00216-014-7692-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 01/28/2014] [Accepted: 02/12/2014] [Indexed: 01/31/2023]
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29
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Ionic liquid-modified magnetic polymeric microspheres as dispersive solid phase extraction adsorbent: a separation strategy applied to the screening of sulfamonomethoxine and sulfachloropyrazine from urine. Anal Bioanal Chem 2014; 406:2669-77. [PMID: 24573579 DOI: 10.1007/s00216-014-7665-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 12/26/2013] [Accepted: 01/24/2014] [Indexed: 10/25/2022]
Abstract
Ionic liquid-modified magnetic polymeric microspheres (ILMPM) were prepared based on Fe3O4 magnetic nanoparticles (MNPs) and ionic liquids (ILs) incorporated into a polymer. The composites were characterized using scanning electron microscopy, Fourier transform infrared analysis, thermogravimetric analysis, X-ray diffraction, and vibrating magnetometer, which indicated that ILMPM had a regularly spherical shape and strong magnetic property. The obtained ILMPM were successfully applied as a special adsorbent of magnetic dispersive solid phase extraction (MDSPE) for the rapid extraction and isolation of sulfamonomethoxine sodium and sulfachloropyrazine sodium in urine. The factors that affected extraction efficiency, such as adsorption conditions, desorption conditions, washing and elution solvents, and pH of the sample solution, were optimized. Under the optimum condition, good linearity in the range of 0.005-2.0 μg g(-1) (r ≥ 0.9996) was obtained for the two sulfonamides (SAs); the average recoveries at three spiked levels ranged from 86.9 to 102.1 %, with relative standard deviations of ≤4.3 %. The presented ILMPM-MDSPE method combined the advantages of ILs, MNPs, and MDSPE and therefore could be potentially applied for rapid screening of SAs in urine.
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30
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Fan YB, Yin YM, Jiang WB, Chen YP, Yang JW, Wu J, Xie MX. Simultaneous determination of ten steroid hormones in animal origin food by matrix solid-phase dispersion and liquid chromatography–electrospray tandem mass spectrometry. Food Chem 2014; 142:170-7. [DOI: 10.1016/j.foodchem.2013.06.104] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 05/04/2013] [Accepted: 06/15/2013] [Indexed: 11/16/2022]
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31
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Rallis GN, Boumba VA, Sakkas VA, Fragkouli K, Siozios G, Albanis TA, Vougiouklakis T. Residues of selected polychlorinated biphenyls (PCB) and organochlorine pesticides (OCP) in postmortem lungs from Epirus, northwestern Greece. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2014; 77:767-775. [PMID: 24839930 DOI: 10.1080/15287394.2014.892447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Organochlorine (OC) pesticides and polychlorinated biphenyls (PCB) are compounds characterized as persistent organic pollutants (POP) in the environment. These compounds are monitored globally since they enter the human body and accumulate in tissues, resulting in consequent adverse effects. In this study concentrations of selected OC compounds were determined in human autopsy lungs from Epirus, a relatively restricted region in northwestern Greece. This is the first epidemiologic study from Greece reporting on monitoring of environmental pollutants in human autopsy material. Thirty lungs collected from that number of autopsy cases were analyzed: 19 males and 11 females. The age range was 14-91 yr (mean ± SD = 61.8 ± 22.5 yr). Twenty-two cases (73%) were positive for at least one pollutant and eight cases were negative (27%). PCB were the most abundant class of contaminants, detected in 15 out of the 30 cases (50%). Dichlorodiphenyltrichloroethane (DDT) and hexachlorocyclohexanes (HCH) were second and third in abundance with 9 (30%) and 8 (27%) positive cases, respectively. The frequency of detection showed a tendency to increase with age of individuals. The patterns of OC found in human autopsy lungs were similar to those reported previously for other human specimens. Our results demonstrated a similar trend in contamination sources and distribution has occurred in western Greece as noted globally.
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Affiliation(s)
- Georgios N Rallis
- a Laboratory of Forensic Medicine & Toxicology, Department of Medicine, School of Health Sciences , University of Ioannina , Ioannina , Greece
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32
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Du Z, Liu M, Li G. Novel magnetic SPE method based on carbon nanotubes filled with cobalt ferrite for the analysis of organochlorine pesticides in honey and tea. J Sep Sci 2013; 36:3387-94. [DOI: 10.1002/jssc.201300710] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Zhuo Du
- School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Miao Liu
- School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Gongke Li
- School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
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33
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Ribeiro FW, Oliveira TM, da Silva FL, Mendonça GL, Homem-de-Mello P, Becker H, de Lima-Neto P, Correia AN, Freire VN. Sensitive voltammetric responses and mechanistic insights into the determination of residue levels of endosulfan in fresh foodstuffs and raw natural waters. Microchem J 2013. [DOI: 10.1016/j.microc.2013.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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34
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Capriotti AL, Cavaliere C, Laganà A, Piovesana S, Samperi R. Recent trends in matrix solid-phase dispersion. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.09.021] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Accidental exposure to polychlorinated biphenyls (PCB) in waste cargo after heavy seas. Global waste transport as a source of PCB exposure. Int Arch Occup Environ Health 2013; 87:125-35. [DOI: 10.1007/s00420-012-0841-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 12/13/2012] [Indexed: 10/27/2022]
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36
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Determination of isothiazolinone preservatives in cosmetics and household products by matrix solid-phase dispersion followed by high-performance liquid chromatography–tandem mass spectrometry. J Chromatogr A 2012. [DOI: 10.1016/j.chroma.2012.10.063] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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37
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Christopoulou OD, Sakkas VA, Albanis TA. Evaluation of matrix solid-phase dispersion extraction for the determination of polycyclic aromatic hydrocarbons in household dust with the aid of experimental design and response surface methodology. J Sep Sci 2012; 35:3554-60. [DOI: 10.1002/jssc.201200563] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 07/27/2012] [Accepted: 08/20/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Ourania D. Christopoulou
- Laboratory of Analytical Chemistry; Department of Chemistry; University of Ioannina; Ioannina Greece
| | - Vasilios A. Sakkas
- Laboratory of Analytical Chemistry; Department of Chemistry; University of Ioannina; Ioannina Greece
| | - Triantafyllos A. Albanis
- Laboratory of Analytical Chemistry; Department of Chemistry; University of Ioannina; Ioannina Greece
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38
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Salemi A, Shafiei E, Vosough M. Optimization of matrix solid phase dispersion coupled with gas chromatography electron capture detection for determination of chlorinated pesticides in soil. Talanta 2012; 101:504-9. [DOI: 10.1016/j.talanta.2012.10.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Revised: 10/03/2012] [Accepted: 10/04/2012] [Indexed: 11/28/2022]
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