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Mohamed AH, Yahaya N, Mohamad S, Kamaruzaman S, Osman H, Nishiyama N, Hirota Y. Synthesis of oil palm empty fruit bunch-based magnetic-carboxymethyl cellulose nanofiber composite for magnetic solid-phase extraction of organophosphorus pesticides in environmental water samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Liang Y, Wei L, Hu J. Residues and dietary intake risk assessments of clomazone, fomesafen, haloxyfop-methyl and its metabolite haloxyfop in spring soybean field ecosystem. Food Chem 2021; 360:129921. [PMID: 33991974 DOI: 10.1016/j.foodchem.2021.129921] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/25/2021] [Accepted: 04/19/2021] [Indexed: 11/30/2022]
Abstract
Soybean is an important oilseed crop, but weed can have a significant effect on soybean yield. Clomazone, fomesafen, and haloxyfop-methyl are high-efficacy herbicides, and the combination of these herbicides shows an ideal effect on weed control. However, the residues of these herbicides and their impacts on human health are still largely unknown. In the current study, a rapid, sensitive, and selective method using modified QuECHERS procedure combined with HPLC-MS/MS was established to detect these herbicides in soybean matrices. The limits of quantification were 0.01, 0.01 and 0.025 mg/kg for haloxyfop-methyl, haloxyfop and fomesafen, and 0.005, 0.005 and 0.0125 mg/kg for clomazone in green soybean, soybean grain, and straw, with the average recoveries ranging from 80% to 107%. The terminal residues of the target compounds were all below the corresponding limits of quantification. The dietary risk assessment showed that the risk quotient values were far below the acceptable human consumption levels.
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Affiliation(s)
- Yiran Liang
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Lan Wei
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Jiye Hu
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
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3
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Martins FCOL, Batista AD, Melchert WR. Current overview and perspectives in environmentally friendly microextractions of carbamates and dithiocarbamates. Compr Rev Food Sci Food Saf 2021; 20:6116-6145. [PMID: 34564942 DOI: 10.1111/1541-4337.12821] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/10/2021] [Accepted: 07/13/2021] [Indexed: 01/07/2023]
Abstract
Carbamates and dithiocarbamates are two classes of pesticides widely employed in the agriculture practice to control and avoid pests and weeds, hence, the monitoring of the residue of those pesticides in different foodstuff samples is important. Thus, this review presents the classification, chemical structure, use, and toxicology of them. Moreover, it was shown the evolution of liquid- and solid-phase microextractions employed in the extraction of carbamates and dithiocarbamates in water and foodstuff samples. The classification, operation mode, and application of the microextractions of liquid-phase and solid-phase used in their extraction were discussed and related to the analytical parameters and guidelines of green analytical chemistry.
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Affiliation(s)
| | - Alex D Batista
- Institute of Chemistry, University of Uberlândia, Uberlândia, Brazil
| | - Wanessa R Melchert
- College of Agriculture "Luiz de Queiroz", University of São Paulo, Piracicaba, Brazil
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4
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Hassan FWM, Raoov M, Kamaruzaman S, Mohamed AH, Ibrahim WNW, Hanapi NSM, Zain NNM, Yahaya N, Chen DDY. A rapid and efficient dispersive trehalose biosurfactant enhanced magnetic solid phase extraction for the sensitive determination of organophosphorus pesticides in cabbage (Brassica olearaceae var. capitate) samples by GC-FID. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.104057] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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5
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Multiclass Pesticide Residue Analysis in Fruit and Vegetable Samples by Combining Acetone-Based Salting-Out Assisted Extraction with Dispersive Liquid-Liquid Microextraction. J CHEM-NY 2021. [DOI: 10.1155/2021/6417093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Isolation and enrichment of multiclass pesticides’ residue, namely, fungicides (benalaxyl), herbicides (atrazine), carbamate insecticides (carbofuran), organophosphate insecticides (chlorpyrifos), organochlorine insecticides (4,4′-DDT), and pyrethroid insecticides (bifenthrin), were made by combining acetone-based salting-out assisted extraction with the dispersive liquid-liquid microextraction (SADLLME) method, followed by high-performance liquid chromatography-diode array detection (HPLC-DAD). The effect of the type and volume of the extraction solvent in the pretreatment step, the volume of the disperser solvent (acetone extract), the type and volume of the extraction solvent, pH, and salt addition in the DLLME procedure was studied. Good coefficient of determination (R2 ≥ 0.9964) was obtained for all the target analytes. The limits of detection and quantification limits were between 2.1 and 4.5 and 5.7 and 12.9 µg/kg, respectively, with adequate enrichment factors ranging from 37.6 to 191. The recoveries of spiked blank tomato ranged from 86.8 to 109.5%. The limit of quantification of the proposed method was lower than the maximum residue limits set by the European Union. The repeatability and reproducibility of precisions ranged between 2.9 and 8.0 and 4.9 and 9.5%, respectively. The optimized and validated method was applied to quantify pesticides in tomato, pear, apple, and melon obtained from different markets. However, all target compounds studied in this work were not detected in any real samples applied. Overall, the work results revealed that the proposed method is useful for the sample extraction and preconcentration of the target analytes from fruits and vegetables.
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6
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Watanabe E, Seike N. Liquid Chromatographic Determination of Trace Bioavailable Neonicotinoids in Soil with Dispersive Liquid-Liquid Microextraction and Its Application for Experimental Monitoring. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4284-4293. [PMID: 33787246 DOI: 10.1021/acs.jafc.0c06327] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Dispersive liquid-liquid microextraction (DLLME) was applied to extract bioavailable neonicotinoids involved in the uptake from soil through roots to plants. To quantitatively extract bioavailable neonicotinoids with the proposed DLLME, 3.5 mL of dichloromethane (extractant)/acetonitrile (dispersive solvent) (6:1, v/v) was injected into 5 mL of aqueous soil extracts in which 1 g of sodium chloride was previously dissolved. The separated dichloromethane phase after sonication and centrifugation was evaporated, reconstituted with a mobile phase, and determined with high-performance liquid chromatography. The established method showed sufficient analytical performance to quantify the amount remaining in soil in trace amounts. In a pilot trial conducted in the field, the changes in the concentrations of bioavailable neonicotinoids were confirmed using the method. After showing rapid degradation in soil, degradation of clothianidin and imidacloprid slowed after about 100 days of treatment, but it continued to be detected at around 0.02-0.05 μg/g-dried weight until 1097 days. This result suggests that once these neonicotinoids are treated in soil, they might remain for long periods, which supports the possibilities of crop contamination and exposure to pollinators.
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Affiliation(s)
- Eiki Watanabe
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki 305-8604, Japan
| | - Nobuyasu Seike
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki 305-8604, Japan
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7
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Shahid R, Kazi TG, Afridi HI, Talpur FN, Akhtar A, Baig JA. Deep-eutectic-solvent-based dispersive and emulsification liquid-liquid microextraction methods for the speciation of selenium in water and determining its total content levels in milk formula and cereals. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5186-5194. [PMID: 33089268 DOI: 10.1039/d0ay01517b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Rapid and environmentally friendly ultrasound-assisted dispersive liquid-liquid microextraction (US-DLLμE) and vortex assisted-emulsification liquid-liquid microextraction (VA-ELLμE) methods are proposed for the speciation of selenium in domestic and mineral water samples. A deep eutectic solvent (DES) prepared with different ratios of choline chloride and phenol is used as an extractant for hydrophobic tetravalent Se complexed with diethyldithiocarbamate in different water samples. The total inorganic Se species levels in water samples were determined via reducing Se(vi) to Se(iv), using sodium thiosulphate as a reducing agent. The total Se levels in formula milk and cereal samples were determined after microwave acid digestion. The different heating steps in GFAAS were also optimized. The analytical parameters for US-DLLμE and VA-ELLμE, including pH, the volume of complexing agent, the ultrasound and vortex mixing shaking times, and the volume and composition of the deep eutectic solvent, were optimized. The accuracies of both methods were confirmed based on the analysis of a certified reference material (CRM) BCR 189 (wholemeal flour). The enhancement factor (EF) and limit of detection (LOD) for Se(iv) via US-DLLμE were found to be 90.8 and 0.029 μg L-1, respectively, whereas an EF of 81.8 and LOD of 0.036 μg L-1 were obtained via VA-ELLμE. The % relative standard deviation (%RSD) values obtained based on the analysis of six replicate standards under the optimized conditions for US-DLLμE and VA-ELLμE were found to be 4.2 and 5.8%, respectively. The optimized methods were applied to different drinking water samples, and acid-digested milk formula and baby cereal food samples.
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Affiliation(s)
- Ramsha Shahid
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
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8
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Toloza CAT, Almeida JMS, Silva LOP, Macedo RC, Lamounier AP, Aucelio RQ, da Cunha ALMC. Determination of Kresoxim-Methyl in Water and in Grapes by High-Performance Liquid Chromatography (HPLC) Using Photochemical-Induced Fluorescence and Dispersive Liquid-Liquid Microextraction (DLLME). ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1733589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Carlos A. T. Toloza
- Chemistry Department, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
- Department of Natural and Exact Sciences, Universidad de la Costa, Barranquilla, Colombia
| | - Joseany M. S. Almeida
- Chemistry Department, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
| | - Lillian O. P. Silva
- Chemistry Department, Education, Science and Technology Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil
| | - Rosana C. Macedo
- Chemistry Department, Education, Science and Technology Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil
| | - Ana Paula Lamounier
- Chemistry Department, Education, Science and Technology Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil
| | - Ricardo Q. Aucelio
- Chemistry Department, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
| | - Alessandra L. M. C. da Cunha
- Chemistry Department, Education, Science and Technology Federal Institute of Rio de Janeiro (IFRJ), Rio de Janeiro, Brazil
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9
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Dispersive Liquid-Liquid Microextraction Method for the Simultaneous Determination of Four Isomers of Hexachlorocyclohexane and Six Pyrethroid Pesticides in Milk by Gas Chromatography Electron Capture Detector. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01662-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Wang X, Du T, Wang J, Kou H, Du X. Determination of polybrominated biphenyls in environmental water samples by ultrasound-assisted dispersive liquid-liquid microextraction followed by high-performance liquid chromatography. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.065] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Combination of solvent extractants for dispersive liquid-liquid microextraction of fungicides from water and fruit samples by liquid chromatography with tandem mass spectrometry. Food Chem 2017; 233:69-76. [DOI: 10.1016/j.foodchem.2017.04.094] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 11/25/2016] [Accepted: 04/16/2017] [Indexed: 11/19/2022]
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12
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Simultaneous determination of pyrethroids and pyrethrins by dispersive liquid-liquid microextraction and liquid chromatography triple quadrupole mass spectrometry in environmental samples. Anal Bioanal Chem 2017; 409:4787-4799. [DOI: 10.1007/s00216-017-0422-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/02/2017] [Accepted: 05/17/2017] [Indexed: 10/19/2022]
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13
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Limchoowong N, Sricharoen P, Techawongstien S, Chanthai S. Using bio-dispersive solution of chitosan for green dispersive liquid-liquid microextraction of trace amounts of Cu(II) in edible oils prior to analysis by ICP-OES. Food Chem 2017; 230:398-404. [PMID: 28407927 DOI: 10.1016/j.foodchem.2017.03.070] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 02/21/2017] [Accepted: 03/11/2017] [Indexed: 11/18/2022]
Abstract
A green approach using chitosan solution as a novel bio-dispersive agent for the dispersive liquid-liquid microextraction (DLLME) of trace amounts of Cu(II) in edible oils is presented. An emulsion was formed by mixing the oil sample with 300µL of 0.25% (w/v) chitosan solution containing 200µL of 6molL-1 HCl. Deionized water was used to induce emulsion breaking without centrifugation. The centrifuged Cu(II) extract was collected and analyzed using an inductively coupled plasma-optical emission spectrometer. The detection and quantitation limits were 2.1 and 6.8µgL-1, respectively. Trace amounts of Cu(II) in six edible oil samples were tested under optimum conditions for DLLME, with a recovery ranging from 90.3% to 109.3%. Therefore, the new dispersive agent in DLLME offers superior performance owing to the non-toxic nature of the solvent, short extraction time, high sensitivity, and easy operation.
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Affiliation(s)
- Nunticha Limchoowong
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Phitchan Sricharoen
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Suchila Techawongstien
- Department of Plant Science and Agricultural Resources, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Saksit Chanthai
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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14
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Bolzan CM, Caldas SS, Guimarães BS, Primel EG. Dispersive liquid-liquid microextraction based on solidification of floating organic droplet for the determination of triazine and triazoles in mineral water samples. J Sep Sci 2016; 39:3410-7. [DOI: 10.1002/jssc.201600405] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/17/2016] [Accepted: 06/24/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Cátia M. Bolzan
- Laboratório de Análises de Compostos Orgânicos e Metais, Escola de Química e Alimentos; Universidade Federal do Rio Grande - FURG; Rio Grande Rio Grande do Sul State Brazil
| | - Sergiane S. Caldas
- Laboratório de Análises de Compostos Orgânicos e Metais, Escola de Química e Alimentos; Universidade Federal do Rio Grande - FURG; Rio Grande Rio Grande do Sul State Brazil
| | - Bruno S. Guimarães
- Laboratório de Análises de Compostos Orgânicos e Metais, Escola de Química e Alimentos; Universidade Federal do Rio Grande - FURG; Rio Grande Rio Grande do Sul State Brazil
| | - Ednei G. Primel
- Laboratório de Análises de Compostos Orgânicos e Metais, Escola de Química e Alimentos; Universidade Federal do Rio Grande - FURG; Rio Grande Rio Grande do Sul State Brazil
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15
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Wang H, Yang X, Hu L, Gao H, Lu R, Zhang S, Zhou W. Detection of triazole pesticides in environmental water and juice samples using dispersive liquid–liquid microextraction with solidified sedimentary ionic liquids. NEW J CHEM 2016. [DOI: 10.1039/c5nj03376d] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The solidification of a sedimentary ionic liquid, [P4448][PF6], was used to simplify the extraction process for the detection of triazole pesticides.
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Affiliation(s)
- Huazi Wang
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
| | - Xiaoling Yang
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
| | - Lu Hu
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
| | - Haixiang Gao
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
| | - Runhua Lu
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
| | - Sanbing Zhang
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
| | - Wenfeng Zhou
- Department of Applied Chemistry
- College of Science
- China Agricultural University
- Beijing 100194
- China
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16
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Song N, Guo M, Shi L. Rapid Residue Analysis of Sulfonylurea Herbicides in Surface Water: Methodology and Residue Findings in eastern Tiaoxi River of China. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/msce.2016.46006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Tu YY, Hsieh MM, Chang SY. Sensitive detection of piperazinyl phenothiazine drugs by field-amplified sample stacking in capillary electrophoresis with dispersive liquid-liquid microextraction. Electrophoresis 2015; 36:2828-2836. [DOI: 10.1002/elps.201500260] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/05/2015] [Accepted: 08/12/2015] [Indexed: 01/14/2023]
Affiliation(s)
- Yi-Yi Tu
- Department of Chemistry; National Kaohsiung Normal University; Taiwan
| | - Ming-Mu Hsieh
- Department of Chemistry; National Kaohsiung Normal University; Taiwan
| | - Sarah Y. Chang
- Department of Chemistry; National Kaohsiung Normal University; Taiwan
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18
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Li Y, Zhang W, Wang RG, Wang PL, Su XO. Development of a Efficient and Sensitive Dispersive Liquid-Liquid Microextraction Technique for Extraction and Preconcentration of 10 β2-Agonists in Animal Urine. PLoS One 2015; 10:e0137194. [PMID: 26348922 PMCID: PMC4562641 DOI: 10.1371/journal.pone.0137194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 08/14/2015] [Indexed: 11/19/2022] Open
Abstract
Dispersive liquid–liquid microextraction (DLLME) coupled with ultra-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS) was developed for the extraction and determination of 10 β2-agonists in animal urine. Some experimental parameters, such as the type and volume of the extraction solvent, the concentration of the dispersant, the salt concentration, the pH value of the sample solution, the extraction time and the speed of centrifugation, were investigated and optimized. Under the optimized conditions, a good enrichment factors (4.8 to 32.3) were obtained for the extraction. The enrichment factor show that the concentration rate of DLLME is significantly higher than other pretreatment methods, and the detection sensitivity has been greatly improved. The calibration curves were linear, the correlation coefficient ranged from 0.9928 to 0.9999 for the concentration range of 0.05 to 50 ngmL-1 and 0.1 to 50 ngmL-1, and the relative standard deviations (RSDs, n = 15, intra and inter-day precision) at a concentration of 5 ngmL-1 were in the range of 1.8 to 14.6%. The limits of detection (LODs) for the 10 β2-agonists, based on a signal-to-noise ratio (S/N) of 3, were in the range of 0.01 to 0.03 ngmL-1. The proposed method was used to identify β2-agonists in three types of animal urine (swine, cattle, sheep), and the relative recoveries from each matrix were in the range of 89.2 to 106.8%, 90.0 to 109.8% and 89.2 to 107.2%, respectively.
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Affiliation(s)
- Yang Li
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei Zhang
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Rui-Guo Wang
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Pei-Long Wang
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiao-Ou Su
- Institute of Quality Standard & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- * E-mail:
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19
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Bolzan CM, Caldas SS, Soares BM, Primel EG. Dispersive Liquid–Liquid Microextraction for the Preconcentration of Multiple Classes of Pesticides in Water. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1048351] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Ribeiro C, Ribeiro AR, Maia AS, Gonçalves VMF, Tiritan ME. New trends in sample preparation techniques for environmental analysis. Crit Rev Anal Chem 2015; 44:142-85. [PMID: 25391434 DOI: 10.1080/10408347.2013.833850] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Environmental samples include a wide variety of complex matrices, with low concentrations of analytes and presence of several interferences. Sample preparation is a critical step and the main source of uncertainties in the analysis of environmental samples, and it is usually laborious, high cost, time consuming, and polluting. In this context, there is increasing interest in developing faster, cost-effective, and environmentally friendly sample preparation techniques. Recently, new methods have been developed and optimized in order to miniaturize extraction steps, to reduce solvent consumption or become solventless, and to automate systems. This review attempts to present an overview of the fundamentals, procedure, and application of the most recently developed sample preparation techniques for the extraction, cleanup, and concentration of organic pollutants from environmental samples. These techniques include: solid phase microextraction, on-line solid phase extraction, microextraction by packed sorbent, dispersive liquid-liquid microextraction, and QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe).
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Affiliation(s)
- Cláudia Ribeiro
- a CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde , Gandra , Portugal
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21
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Caldas SS, Rombaldi C, Arias JLDO, Marube LC, Primel EG. Multi-residue method for determination of 58 pesticides, pharmaceuticals and personal care products in water using solvent demulsification dispersive liquid-liquid microextraction combined with liquid chromatography-tandem mass spectrometry. Talanta 2015; 146:676-88. [PMID: 26695317 DOI: 10.1016/j.talanta.2015.06.047] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/11/2015] [Accepted: 06/17/2015] [Indexed: 10/23/2022]
Abstract
A rapid and efficient sample pretreatment using solvent-based de-emulsification dispersive liquid-liquid microextraction (SD-DLLME) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was studied for the extraction of 58 pharmaceuticals and personal care products (PPCPs) and pesticides from water samples. Type and volume of extraction and disperser solvents, pH, salt addition, amount of salt and type of demulsification solvent were evaluated. Limits of quantification (LOQ) in the range from 0.0125 to 1.25 µg L(-1) were reached, and linearity was in the range from the LOQ of each compound to 25 μg L(-1). Recoveries ranged from 60% to 120% for 84% of the compounds, with relative standard deviations lower than 29%. The proposed method demonstrated, for the first time, that sample preparation by SD-DLLME with determination by LC-MS/MS can be successfully used for the simultaneous extraction of 32 pesticides and 26 PPCPs from water samples. The entire procedure, including the extraction of 58 organic compounds from the aqueous sample solution and the breaking up of the emulsion after extraction with water, rather than with an organic solvent, was environmentally friendly. In addition, this technique was less expensive and faster than traditional techniques. Finally, the analytical method under study was successfully applied to the analysis of all 58 pesticides and PPCPs in surface water samples.
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Affiliation(s)
- Sergiane Souza Caldas
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil
| | - Caroline Rombaldi
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil
| | | | - Liziane Cardoso Marube
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil
| | - Ednei Gilberto Primel
- Escola de Química e Alimentos, Universidade Federal do Rio Grande-FURG, 96203-900 Rio Grande, RS, Brazil.
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Determination of estrogenic mycotoxins in environmental water samples by low-toxicity dispersive liquid–liquid microextraction and liquid chromatography–tandem mass spectrometry. J Chromatogr A 2015; 1391:1-8. [DOI: 10.1016/j.chroma.2015.02.067] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 02/18/2015] [Accepted: 02/23/2015] [Indexed: 11/19/2022]
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23
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Vichapong J, Burakham R. Development and validation of an ultrasound-assisted surfactant-enhanced emulsification microextraction method for liquid chromatographic determination of carbamate residues in fruit juices. ACTA CHROMATOGR 2015. [DOI: 10.1556/achrom.27.2015.1.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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In-coupled syringe assisted octanol-water partition microextraction coupled with high-performance liquid chromatography for simultaneous determination of neonicotinoid insecticide residues in honey. Talanta 2015; 139:21-6. [PMID: 25882403 DOI: 10.1016/j.talanta.2015.02.033] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 02/14/2015] [Accepted: 02/18/2015] [Indexed: 11/20/2022]
Abstract
A simple and fast method namely in-coupled syringe assisted octanol-water partition microextraction combined with high performance liquid chromatography (HPLC) has been developed for the extraction, preconcentration and determination of neonicotinoid insecticide residues (e.g. imidacloprid, acetamiprid, clothianidin, thiacloprid, thiamethoxam, dinotefuran, and nitenpyram) in honey. The experimental parameters affected the extraction efficiency, including kind and concentration of salt, kind of disperser solvent and its volume, kind of extraction solvent and its volume, shooting times and extraction time were investigated. The extraction process was carried out by rapid shooting of two syringes. Therefore, rapid dispersion and mass transfer processes was created between phases, and thus affects the extraction efficiency of the proposed method. The optimum extraction conditions were 10.00 mL of aqueous sample, 10% (w/v) Na2SO4, 1-octanol (100µL) as an extraction solvent, shooting 4 times and extraction time 2min. No disperser solvent and centrifugation step was necessary. Linearity was obtained within the range of 0.1-3000 ngmL(-1), with the correlation coefficients greater than 0.99. The high enrichment factor of the target analytes was 100 fold and low limit of detection (0.25-0.50 ngmL(-1)) could be obtained. This proposed method has been successfully applied in the analysis of neonicotinoid residues in honey, and good recoveries in the range of 96.93-107.70% were obtained.
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Vichapong J, Santaladchaiyakit Y, Burakham R, Srijaranai S. Determination of Benzimidazole Anthelminthics in Eggs by Advanced Microextraction with High-Performance Liquid Chromatography. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.952371] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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New method for the determination of carbamate and pyrethroid insecticides in water samples using on-line SPE fused core column chromatography. Talanta 2014; 129:579-85. [DOI: 10.1016/j.talanta.2014.06.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 06/11/2014] [Accepted: 06/18/2014] [Indexed: 11/20/2022]
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27
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Hajiaghabozorgy R, Zarei AR, Pakdehi SG. A highly sensitive spectrophotometric determination of ultra trace amounts of azide ion in water and biological samples after preconcentration using dispersive liquid-liquid microextraction technique. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s1061934814080085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Padrón MET, Afonso-Olivares C, Sosa-Ferrera Z, Santana-Rodríguez JJ. Microextraction techniques coupled to liquid chromatography with mass spectrometry for the determination of organic micropollutants in environmental water samples. Molecules 2014; 19:10320-49. [PMID: 25033059 PMCID: PMC6272018 DOI: 10.3390/molecules190710320] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/02/2014] [Accepted: 07/10/2014] [Indexed: 11/17/2022] Open
Abstract
Until recently, sample preparation was carried out using traditional techniques, such as liquid–liquid extraction (LLE), that use large volumes of organic solvents. Solid-phase extraction (SPE) uses much less solvent than LLE, although the volume can still be significant. These preparation methods are expensive, time-consuming and environmentally unfriendly. Recently, a great effort has been made to develop new analytical methodologies able to perform direct analyses using miniaturised equipment, thereby achieving high enrichment factors, minimising solvent consumption and reducing waste. These microextraction techniques improve the performance during sample preparation, particularly in complex water environmental samples, such as wastewaters, surface and ground waters, tap waters, sea and river waters. Liquid chromatography coupled to tandem mass spectrometry (LC/MS/MS) and time-of-flight mass spectrometric (TOF/MS) techniques can be used when analysing a broad range of organic micropollutants. Before separating and detecting these compounds in environmental samples, the target analytes must be extracted and pre-concentrated to make them detectable. In this work, we review the most recent applications of microextraction preparation techniques in different water environmental matrices to determine organic micropollutants: solid-phase microextraction SPME, in-tube solid-phase microextraction (IT-SPME), stir bar sorptive extraction (SBSE) and liquid-phase microextraction (LPME). Several groups of compounds are considered organic micropollutants because these are being released continuously into the environment. Many of these compounds are considered emerging contaminants. These analytes are generally compounds that are not covered by the existing regulations and are now detected more frequently in different environmental compartments. Pharmaceuticals, surfactants, personal care products and other chemicals are considered micropollutants. These compounds must be monitored because, although they are detected in low concentrations, they might be harmful toward ecosystems.
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Affiliation(s)
- Ma Esther Torres Padrón
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
| | - Cristina Afonso-Olivares
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
| | - Zoraida Sosa-Ferrera
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
| | - José Juan Santana-Rodríguez
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, 35017, Las Palmas de Gran Canaria, Spain.
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Cabuk H, Köktürk M, Ata S. pH-assisted homogeneous liquid-liquid microextraction using dialkylphosphoric acid as an extraction solvent for the determination of chlorophenols in water samples. J Sep Sci 2014; 37:1343-51. [PMID: 24634365 DOI: 10.1002/jssc.201400158] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 02/24/2014] [Accepted: 03/04/2014] [Indexed: 11/10/2022]
Abstract
In this study, a new pH-assisted homogeneous liquid-liquid microextraction combined with HPLC with UV detection was developed for the determination of chlorophenols in water samples. In this approach, bis(2-ethylhexyl) phosphate was used for the first time as the low-density extraction solvent. In particular, 60 μL of bis(2-ethylhexyl) phosphate was injected into the sample solution (5 mL) and dissolved completely in the sample solution while the pH was increased to 9. Afterwards, the pH of the sample solution was lowered to 1, and a cloudy solution was formed. At this stage, hydrophobic interactions between the analytes and the long double hydrocarbon chains of extraction solvent were expected to be the main forces driving extraction. A series of parameters that influence extraction were investigated systematically. Under the optimized conditions, the LODs and LOQs for the chlorophenols were 1.4-2.7 and 4.7-9.1 ng/mL, respectively. RSDs based on five replicate extraction of 100 ng/mL of each chlorophenols were <4.7% for intraday and 7.4% for interday precision. This method has been also successfully applied to analyze real water samples at two different spiked concentrations, and satisfactory recoveries were achieved.
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Affiliation(s)
- Hasan Cabuk
- Department of Chemistry, Faculty of Arts and Sciences, Bülent Ecevit University, Zonguldak, Turkey
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30
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31
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Wang X, Liu J, Liu Q, Du X, Jiang G. Rapid determination of tetrabromobisphenol A and its main derivatives in aqueous samples by ultrasound-dispersive liquid–liquid microextraction combined with high-performance liquid chromatography. Talanta 2013; 116:906-11. [DOI: 10.1016/j.talanta.2013.08.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 07/30/2013] [Accepted: 08/11/2013] [Indexed: 10/26/2022]
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32
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Cheng MC, Chi KM, Chang SY. Detection of digoxin in urine samples by surface-assisted laser desorption/ionization mass spectrometry with dispersive liquid–liquid microextraction. Talanta 2013; 115:123-8. [DOI: 10.1016/j.talanta.2013.04.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 04/17/2013] [Accepted: 04/18/2013] [Indexed: 01/22/2023]
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33
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Soares BM, Pereira ER, Maciel JV, Vieira AA, Duarte FA. Assessment of dispersive liquid-liquid microextraction for the simultaneous extraction, preconcentration, and derivatization of Hg2+
and CH3
Hg+
for further determination by GC-MS. J Sep Sci 2013; 36:3411-8. [DOI: 10.1002/jssc.201300599] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/30/2013] [Accepted: 07/31/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Bruno M. Soares
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Ederson R. Pereira
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Juliana V. Maciel
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Augusto A. Vieira
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Fabio A. Duarte
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
- Departamento de Química; Universidade Federal de Santa Maria; Santa Maria RS Brazil
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34
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Dispersive nano solid material-ultrasound assisted microextraction as a novel method for extraction and determination of bendiocarb and promecarb: response surface methodology. Talanta 2013; 116:637-46. [PMID: 24148456 DOI: 10.1016/j.talanta.2013.07.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Revised: 07/04/2013] [Accepted: 07/05/2013] [Indexed: 11/23/2022]
Abstract
A new extraction method, based on Dispersive Nano-Solid material-Ultrasound Assisted Micro-Extraction (DNSUAME), was used for the preconcentration of the bendiocarb and promecarb pesticides in the water samples prior to high performance liquid chromatography (HPLC). The properties of NiZnS nanomaterial loaded on activated carbon (NiZnS-AC) are characterized by FT-IR, TEM, and BET. This novel nanomaterial showed great adsorptive ability towards the bendiocarb and promecarb pesticides. The effective variables such as the amount of adsorbent (mg: NiZnS-AC), the pH and ionic strength of sample solution, the vortex and ultrasonic time (min), the ultrasonic temperature (°C), and desorption volume (mL) are investigated by screening 2(7-4) experiments of Plackett-Burman (PB) design. The important variables optimized by using a central composite design (CCD) were combined by a desirability function (DF). At optimum conditions, the method has linear response over 0.0033-10 µg mL(-1) with detection limit between 0.0010 and 0.0015 µg mL(-1) with relative standard deviations (RSDs) less than 5.5% (n=3). The method has been successfully applied for the determination of the bendiocarb and promecarb pesticides in the water samples.
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35
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Luo M, Liu D, Zhou Z, Wang P. A New Chiral Residue Analysis Method for Triazole Fungicides in Water Using Dispersive Liquid-Liquid Microextraction (DLLME). Chirality 2013; 25:567-74. [DOI: 10.1002/chir.22172] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 01/26/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Mai Luo
- Department of Applied Chemistry; China Agricultural University; Beijing People's Republic of China
| | - Donghui Liu
- Department of Applied Chemistry; China Agricultural University; Beijing People's Republic of China
| | - Zhiqiang Zhou
- Department of Applied Chemistry; China Agricultural University; Beijing People's Republic of China
| | - Peng Wang
- Department of Applied Chemistry; China Agricultural University; Beijing People's Republic of China
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36
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Çabuk H, Köktürk M. Low density solvent-based dispersive liquid-liquid microextraction for the determination of synthetic antioxidants in beverages by high-performance liquid chromatography. ScientificWorldJournal 2013; 2013:414398. [PMID: 23853535 PMCID: PMC3703340 DOI: 10.1155/2013/414398] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 06/05/2013] [Indexed: 11/30/2022] Open
Abstract
A simple and efficient method was established for the determination of synthetic antioxidants in beverages by using dispersive liquid-liquid microextraction combined with high-performance liquid chromatography with ultraviolet detection. Butylated hydroxy toluene, butylated hydroxy anisole, and tert-butylhydroquinone were the antioxidants evaluated. Experimental parameters including extraction solvent, dispersive solvent, pH of sample solution, salt concentration, and extraction time were optimized. Under optimal conditions, the extraction recoveries ranged from 53 to 96%. Good linearity was observed by the square of correlation coefficients ranging from 0.9975 to 0.9997. The relative standard deviations ranged from 1.0 to 5.2% for all of the analytes. Limits of detection ranged from 0.85 to 2.73 ng mL(-1). The method was successfully applied for determination of synthetic antioxidants in undiluted beverage samples with satisfactory recoveries.
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Affiliation(s)
- Hasan Çabuk
- Department of Chemistry, Faculty of Arts and Sciences, Bülent Ecevit University, 67100 Zonguldak, Turkey.
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37
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Yan H, Wang H. Recent development and applications of dispersive liquid–liquid microextraction. J Chromatogr A 2013; 1295:1-15. [DOI: 10.1016/j.chroma.2013.04.053] [Citation(s) in RCA: 192] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Accepted: 04/16/2013] [Indexed: 11/29/2022]
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38
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Martín J, Camacho-Muñoz D, Santos JL, Aparicio I, Alonso E. Determination of priority pollutants in aqueous samples by dispersive liquid–liquid microextraction. Anal Chim Acta 2013; 773:60-67. [DOI: 10.1016/j.aca.2013.02.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 02/13/2013] [Accepted: 02/16/2013] [Indexed: 11/29/2022]
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39
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Han D, Tang B, Ho Row K. Determination of Pyrethroid Pesticides in Tomato Using Ionic Liquid-Based Dispersive Liquid-Liquid Microextraction. J Chromatogr Sci 2013; 52:232-7. [DOI: 10.1093/chromsci/bmt017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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40
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Andraščíková M, Hrouzková S, Cunha SC. Combination of QuEChERS and DLLME for GC-MS determination of pesticide residues in orange samples. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2013; 30:286-97. [DOI: 10.1080/19440049.2012.736029] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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41
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Dong J, Fan X, Qiao F, Ai S, Xin H. A novel protocol for ultra-trace detection of pesticides: Combined electrochemical reduction of Ellman's reagent with acetylcholinesterase inhibition. Anal Chim Acta 2013; 761:78-83. [DOI: 10.1016/j.aca.2012.11.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 11/16/2012] [Accepted: 11/19/2012] [Indexed: 10/27/2022]
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42
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Huang SW, Hsieh MM, Chang SY. Sensitive determination of sertraline by capillary electrophoresis with dispersive liquid–liquid microextraction and field-amplified sample stacking. Talanta 2012; 101:460-4. [DOI: 10.1016/j.talanta.2012.09.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 09/27/2012] [Accepted: 09/27/2012] [Indexed: 11/16/2022]
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43
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Zhang L, Chen F, Liu S, Chen B, Pan C. Ionic liquid-based vortex-assisted dispersive liquid-liquid microextraction of organophosphorus pesticides in apple and pear. J Sep Sci 2012; 35:2514-9. [DOI: 10.1002/jssc.201101060] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lijin Zhang
- Department of Food Science; Tianjin Agricultural University; Tianjin China
- College of Food Science & Nutritional Engineering; China Agricultural University; Beijing China
| | - Fang Chen
- College of Food Science & Nutritional Engineering; China Agricultural University; Beijing China
| | - Shaowen Liu
- College of Sciences; China Agricultural University; Beijing China
| | - Biyu Chen
- Department of Food Science; Tianjin Agricultural University; Tianjin China
| | - Canping Pan
- College of Sciences; China Agricultural University; Beijing China
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44
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Zhang A, Zhou L, Zhang P, Fan X, Wang C, Zhang L. Bamboo Charcoal as Solid-Phase Extraction Adsorbent for the Determination of Organophosphorus Pesticides in Water Samples by High-Performance Liquid Chromatography. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.680059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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45
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Cabuk H, Akyüz M, Ata S. A simple solvent collection technique for a dispersive liquid-liquid microextraction of parabens from aqueous samples using low-density organic solvent. J Sep Sci 2012; 35:2645-52. [PMID: 22887738 DOI: 10.1002/jssc.201200317] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 05/22/2012] [Accepted: 05/23/2012] [Indexed: 11/08/2022]
Abstract
A simple technique for the collection of an extraction solvent lighter than water after dispersive liquid-liquid microextraction combined with high-performance liquid chromatography with ultraviolet detection was developed for the determination of four paraben preservatives in aqueous samples. After the extraction procedure, low-density organic solvent together with some little aqueous phase was separated by using a disposable glass Pasteur pipette. Next, the flow of the aqueous phase was stopped by successive dipping the capillary tip of the pipette into anhydrous Na(2)SO(4). The upper organic layer was then removed simply with a microsyringe and injected into the high-performance liquid chromatography system. Experimental parameters that affect the extraction efficiency were investigated and optimized. Under optimal extraction conditions, the extraction recoveries ranged from 25 to 86%. Good linearity with coefficients with the square of correlation coefficients ranging from 0.9984 to 0.9998 was observed in the concentration range of 0.001-0.5 μg/mL. The relative standard deviations ranged from 4.1 to 9.3% (n = 5) for all compounds. The limits of detection ranged from 0.021 to 0.046 ng/mL. The method was successfully applied for the determination of parabens in tap water and fruit juice samples and good recoveries (61-108%) were achieved for spiked samples.
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Affiliation(s)
- Hasan Cabuk
- Department of Chemistry, Faculty of Arts and Sciences, Zonguldak Karaelmas University, Zonguldak, Turkey.
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46
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Melo A, Mansilha C, Pinho O, M.P.L.V.O. Ferreira I. Analysis of Pesticides in Tomato Combining QuEChERS and Dispersive Liquid–Liquid Microextraction Followed by High-Performance Liquid Chromatography. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9469-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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47
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Cavalcante RM, Lima DM, Fernandes GM, Duaví WC. Relation factor: A new strategy for quality control in the determination of pesticides in environmental aqueous matrices. Talanta 2012; 93:212-8. [DOI: 10.1016/j.talanta.2012.02.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 02/06/2012] [Accepted: 02/07/2012] [Indexed: 11/29/2022]
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48
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Comparison of ultrasound-assisted emulsification and dispersive liquid–liquid microextraction methods for the speciation of inorganic selenium in environmental water samples using low density extraction solvents. Anal Chim Acta 2012; 714:82-8. [DOI: 10.1016/j.aca.2011.11.063] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2011] [Revised: 11/27/2011] [Accepted: 11/29/2011] [Indexed: 11/23/2022]
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49
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Determination of six pyrethroid insecticides in fruit juice samples using dispersive liquid–liquid microextraction combined with high performance liquid chromatography. Talanta 2012; 88:209-15. [DOI: 10.1016/j.talanta.2011.10.033] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 09/29/2011] [Accepted: 10/04/2011] [Indexed: 11/15/2022]
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50
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Wang H, Yan H, Qiao J. Miniaturized matrix solid-phase dispersion combined with ultrasound-assisted dispersive liquid-liquid microextraction for the determination of three pyrethroids in soil. J Sep Sci 2011; 35:292-8. [DOI: 10.1002/jssc.201100753] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 10/06/2011] [Accepted: 10/07/2011] [Indexed: 11/10/2022]
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