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Bodur S, Bodur SE, Tutar BK, Bakırdere S, Yağmuroğlu O. Development of dispersive solid phase extraction method for the preconcentration of parathion ethyl as a simulant of nerve agent sarin from soil, plant and water samples prior to GC-MS determination. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:829. [PMID: 39167268 DOI: 10.1007/s10661-024-13007-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 08/15/2024] [Indexed: 08/23/2024]
Abstract
In the presented study, an efficient and fast analytical method was developed for the determination of parathion ethyl as sarin simulant by gas chromatography-mass spectrometry (GC-MS). Dispersive solid phase extraction (DSPE) was performed to concentrate parathion ethyl from soil, plant and water samples. Reduced graphene oxide-iron (II, III) oxide (rGO-Fe3O4) nanocomposite was used as an adsorbent to collect the target analyte from the aqueous sample solutions. After the optimization of extraction/preconcentration parameters, optimum conditions for adsorbent amount, eluent type, mixing type/period, eluent volume and initial sample volume were determined as 15 mg, acetonitrile, vortex/30 s, 100 µL and 10 mL, respectively. Under the optimum conditions, analytical performance of the developed DSPE-GC-MS method was evaluated in terms of limit of detection (LOD), limit of quantitation (LOQ) and dynamic range. Dynamic range, LOD and LOQ values were figured out to be 0.94-235.15 µg/kg, 0.41 µg/kg and 1.36 µg/kg (mass based), respectively. Satisfactory percent recovery results (90.3-125% for soil, 93.5-108.7% for plant, 88.5-112.9% for tap water) were achieved for soil, plant and tap water samples which proved the accuracy and applicability of the developed method. It is predicted that the DSPE-GC-MS method can be accurately used for the detection of sarin in soil, plant and water samples taken from war territories.
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Affiliation(s)
- Süleyman Bodur
- Chemistry Department, Yıldız Technical University, 34220, Istanbul, Türkiye
- Faculty of Pharmacy, Department of Analytical Chemistry, İstinye University, 34010, Istanbul, Türkiye
- Scientific and Technological Research Application and Research Center, İstinye University, 34010, Istanbul, Türkiye
| | | | | | - Sezgin Bakırdere
- Chemistry Department, Yıldız Technical University, 34220, Istanbul, Türkiye.
- Turkish Academy of Sciences (TÜBA), Piyade Street, No. 27, Çankaya, 06690, Ankara, Türkiye.
| | - Ozan Yağmuroğlu
- Air Force Academy, Department of Chemistry, National Defence University, 34149, Istanbul, Türkiye.
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Engineering an Ag/Au bimetallic nanoparticle-based acetylcholinesterase SERS biosensor for in situ sensitive detection of organophosphorus pesticide residues in food. Anal Bioanal Chem 2023; 415:203-210. [PMID: 36333614 DOI: 10.1007/s00216-022-04400-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/06/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
Abstract
Developing simple, efficient, and inexpensive method for trace amount organophosphorus pesticides' (OPs) detection with high sensitivity and specificity is of significant importance for guaranteeing food safety. Herein, an Ag/Au bimetallic nanoparticle-based acetylcholinesterase (AChE) surface-enhanced Raman scattering (SERS) biosensor was constructed for in situ simple and sensitive detection of pesticide residues in food. The principle of this biosensor exploited 4-mercaptophenylboronic acid (4-MPBA)-modified Ag/Au bimetallic nanoprobes as SERS signal probe to improve sensitivity and stability. The combination of AChE and choline oxidase (CHO) can hydrolyze acetylcholine (ATCh) to generate H2O2. The product of H2O2 selectively oxidizes the boronate ester of 4-MPBA, decreasing the Raman intensity of the B-O symmetric stretching. In the presence of OPs, it could inhibit the production of H2O2 by destroying the AChE activity, so the reduction of the SERS signal was also alleviated. Based on the principle, an Ag/Au bimetallic nanoparticle-based AChE SERS sensor was established without any complicated pretreatments. Benefiting from the synergistic effects of Ag/Au bimetallic hybrids, a linear detection range from 5×10-9 to 5×10-4 M was achieved with a limit of detection down to 1.7×10-9 M using parathion-methyl (PM) as the representative model of OPs. Moreover, the SERS biosensor uses readily available reagents and is simple to implement. Importantly, the proposed SERS biosensor was used to quantitatively analyze OP residues in apple peels. The levels of OPs detected in real samples by this method were consistent with those obtained using gas chromatography-mass spectrometry (GC-MS), suggesting the proposed assay has great potential applications for OPs in situ detection in food safety fields.
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Ferreira JA, Almeida GB, Lins PMP, Tavares MM, Farias SCC, Queiroz SCN. Study of insecticide translocation in coconut palm trees after using pressurized endotherapy. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4851-4860. [PMID: 36398780 DOI: 10.1039/d2ay01328b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Alternative techniques for applying agricultural products, such as pressurized endotherapy, have shown promise in pest and disease control in coconut palms (Cocos nucifera Linn.). In this work, azadirachtin and abamectin were applied by pressurized endotherapy to control Brassolis sophorae. Twelve different treatments were carried out, and in all of them, at least one plant had the larvae completely dead four and five days after endotherapeutic applications, and all the others died within the next few hours. Leaf and fruit analyses were performed to determine the concentration over time. High concentrations of abamectin were observed after 15 and 30 days on leaves when applied in larger volumes. In fruits, no residue was found regardless of the applied concentration. Analytical methods were developed and validated for leaves and fruits to analyze insecticide residues using LC-MS/MS and modified QuEChERS acetate according to SANTE/11813/2017 guidelines. The insecticide translocation tests in the leaves and the high mortality of insects showed that pressurized endotherapy is a technique to be considered for future studies in controlling B. sophorae in coconut palm trees.
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Affiliation(s)
- Jordana Alves Ferreira
- Laboratory of Residues and Contaminants, Embrapa Environment, Rodovia SP 340, km 127.5, 13918-110, Jaguariúna, SP, Brazil.
| | - Gabriela Brito Almeida
- Laboratory of Residues and Contaminants, Embrapa Environment, Rodovia SP 340, km 127.5, 13918-110, Jaguariúna, SP, Brazil.
| | | | - Marley Mendonça Tavares
- Laboratory of Residues and Contaminants, Embrapa Environment, Rodovia SP 340, km 127.5, 13918-110, Jaguariúna, SP, Brazil.
| | | | - Sonia C N Queiroz
- Laboratory of Residues and Contaminants, Embrapa Environment, Rodovia SP 340, km 127.5, 13918-110, Jaguariúna, SP, Brazil.
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H-beta zeolite-based dispersive solid-phase strategy for the multi-residue determination of pesticides. Anal Chim Acta 2022; 1227:340327. [DOI: 10.1016/j.aca.2022.340327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 11/20/2022]
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5
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Quantitative determination of targeted and untargeted pesticide residues in coconut milk by liquid chromatography - Atmospheric pressure chemical ionization - high energy collisional dissociation tandem high-resolution mass spectrometry. J Chromatogr A 2021; 1659:462649. [PMID: 34742133 DOI: 10.1016/j.chroma.2021.462649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/23/2021] [Accepted: 10/23/2021] [Indexed: 11/20/2022]
Abstract
Quantitative determination of targeted and untargeted pesticide residues from food products is very important for the assessment of safety of the food products. In the present work, a simple, selective and sensitive method based on liquid chromatography atmospheric pressure chemical ionization high energy collisional dissociation high-resolution tandem mass spectrometry (LC-APCI-HCD-HRMS/MS) for quantification of 19 priority organophosphorus and carbamate pesticides and 10 untargeted pesticides from coconut milk samples was developed and validated. The pesticide residues were extracted by solvent partition followed by dispersive solid-phase extraction clean-up and quantified by LC-APCI-HRMS/MS technique. The method showed the linearity for targeted pesticides in the range of 0.5-1000 ng/g with a limit of detection of ranging 0.5-5 ng/g and limit of quantification of ranging 1-10 ng/g measured at 3:1 and 10:1 signal to noise ratios, respectively. The untargeted pesticide residues were quantified by the response factor method. The method was validated for intraday and interday precision, which was less than 15%. The recovery of the analytes varied between 82 and 117%, and the developed method was applied for the analysis of the coconut milk samples. The analyzed samples showed the presence of quinalphos, malathion, and methiocarb at concentrations of 4.55, 5.54, and 206.99 ng/g.
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Tuzen M, Altunay N, Elik A, Afshar Mogaddam MR, Katin K. Experimental and theoretical investigation for the spectrophotometric determination of thiabendazole in fruit samples. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106488] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Multivariate optimization of a dispersive liquid-liquid microextraction method for determination of copper and manganese in coconut water by FAAS. Food Chem 2021; 365:130473. [PMID: 34237574 DOI: 10.1016/j.foodchem.2021.130473] [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: 03/13/2021] [Revised: 05/15/2021] [Accepted: 06/24/2021] [Indexed: 11/23/2022]
Abstract
In this study, multivariate methodologies were applied in the optimization of a dispersive liquid-liquid microextraction (DLLME) method, aiming at the determination of Cu and Mn in coconut water samples by flame atomic absorption spectrometry. Some extractors (chloroform and CCl4), dispersants (ethanol, methanol and acetonitrile) and complexing agents (5-Br-PADAP and Dithzone) were previously tested in the extraction. A mixture design was used to optimize the component proportions formed by chloroform (10%), acetonitrile (76%), and 0.020% 5-Br-PADAP solution (14%). Doehlert design optimized the variables pH, NaCl, and buffer amounts for the extraction of both metals. The following analytical characteristics, respectively for Cu and Mn, were accessed: limit of quantification (4.83 and 3.32 µg L-1), enrichment factors (11 and 8 fold), and precision (6.6 and 6.0% RSD, n = 10). Addition/recovery tests of the analytes allowed to find values in the range of 96.5-120% for Cu and 99-107% for Mn.
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Shi X, Yang F, Liu H, Zhang M, Sun X, Guo Y. Supersensitive Electrochemiluminescence Aptasensor for Malathion Residues Based on ATO@TiO2 and AgNPs. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02066-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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9
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Multiresidue method for determination of pesticides in coconut (Cocos nucifera Linn.) endosperm by using GC–MS/MS and UHPLC–MS/MS analysis. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Shrivas K, Patel S, Thakur SS, Shankar R. Food safety monitoring of the pesticide phenthoate using a smartphone-assisted paper-based sensor with bimetallic Cu@Ag core-shell nanoparticles. LAB ON A CHIP 2020; 20:3996-4006. [PMID: 32966488 DOI: 10.1039/d0lc00515k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Presently, the use of several pesticides has been continuously rising owing to the increase in the production of food materials to meet the requirements of the growing population of the world. The safety of food materials with regards to pesticides is an important health concern for people. With this aim, we have developed a smartphone-assisted paper-based sensor impregnated with citrate capped Cu@Ag core-shell nanoparticles (NPs) for selective determination of phenthoate pesticides in water and food samples. The mechanism for selective detection is based on the high affinity of phenthoate to interact with silver NPs present on the surface of CuNPs, which results in aggregation and a change in the color of the paper device. Furthermore, the proposed mechanism and interaction of phenthoate with Cu@Ag NPs was theoretically investigated by density functional theory (DFT) using Gaussian 16.0 software. The linear range for the determination of phenthoate was found in the range of 50-1500 μg L-1, with a limit of detection of 15 μg L-1, and a 92.6 to 97.4% recovery, and the interference studies demonstrated the selectivity for the determination of the target analyte from complex sample matrices. Finally, paper impregnated with Cu@Ag was exploited for the monitoring of the phenthoate pesticide in different water and food samples. The advantages of this paper-based sensor, coupled with a smartphone readout system, are that is it is user-friendly, easy-to-use, cost-effective, and can be applied at the sample source compared to sophisticated analytical instruments.
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Affiliation(s)
- Kamlesh Shrivas
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, CG 492010, India.
| | - Sanyukta Patel
- Department of Chemistry, Government Nagarjuna Post Graduate College of Science, Raipur, CG-492010, India
| | - Santosh Singh Thakur
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur, CG 495009, India
| | - Ravi Shankar
- Nanoscience and Nanoengineering Program, South Dakota School of Mines and Technology, Rapid City, South Dakota-57701, USA
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Aladaghlo Z, Fakhari AR, Alavioon SI, Dabiri M. A mesoporous nanosorbent composed of silica, graphene, and palladium (II) for ultrasound-assisted dispersive solid-phase extraction of organophosphorus pesticides prior to their quantitation by ion mobility spectrometry. Mikrochim Acta 2020; 187:209. [DOI: 10.1007/s00604-020-4174-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 02/18/2020] [Indexed: 01/24/2023]
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12
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Liu A, Kou W, Zhang H, Xu J, Zhu L, Kuang S, Huang K, Chen H, Jia Q. Quantification of Trace Organophosphorus Pesticides in Environmental Water via Enrichment by Magnetic-Zirconia Nanocomposites and Online Extractive Electrospray Ionization Mass Spectrometry. Anal Chem 2020; 92:4137-4145. [DOI: 10.1021/acs.analchem.0c00304] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Aiying Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Wei Kou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Hua Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Jiaquan Xu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Lixue Zhu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Siliang Kuang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China
| | - Qiong Jia
- College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
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13
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Chen G, Jin M, Ma J, Yan M, Cui X, Wang Y, Zhang X, Li H, Zheng W, Zhang Y, Abd El-Aty AM, Hacımüftüoğlu A, Wang J. Competitive Bio-Barcode Immunoassay for Highly Sensitive Detection of Parathion Based on Bimetallic Nanozyme Catalysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:660-668. [PMID: 31804828 DOI: 10.1021/acs.jafc.9b06125] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A competitive sensitive bio-barcode immunoassay based on bimetallic nanozyme (Au@Pt: gold@platinum) catalysis has been designed for the detection of the pesticide parathion. Gold nanoparticles (AuNPs) were modified with single-stranded thiol oligonucleotides (ssDNAs) and monoclonal antibodies (mAbs) to form AuNP probes; magnetic nanoparticles (MNPs) were coated with ovalbumin (OVA)-parathion haptens as MNP probes, and bimetallic nanozyme (Au@Pt) nanoparticles functionalized with the complementary thiolated ssDNA were used as Au@Pt probes. The Au@Pt probes reacted with the AuNP probes through complementary base pairing. Further, parathion competed with MNP probes to bind the mAbs on the AuNP probes. Finally, the complex system was separated by a magnetic field. The released Au@Pt probes catalyzed a chromogenic system consisting of teramethylbenzidine (TMB). The bimetallic nanozyme-based bio-barcode immunoassay was performed on rice, pear, apple, and cabbage samples to verify the feasibility of the method. The immunoassay exhibited a linear response from 0.01 to 40 μg·kg-1, and the limit of detection (LOD) was 2.13 × 10-3 μg·kg-1. The recoveries and relative standard deviations (RSDs) ranged from 73.12 to 116.29% and 5.59 to 10.87%, respectively. The method was found to correlate well with data obtained by liquid chromatography-tandem mass spectrometry (LC-MS/MS). In conclusion, this method exhibits potential as a sensitive alternative method for the detection of a variety of pesticides, ensuring the safety of fruits and vegetables in agriculture.
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Affiliation(s)
- Ge Chen
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Maojun Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Jun Ma
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Mengmeng Yan
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Xueyan Cui
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Yuanshang Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Xiuyuan Zhang
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Hui Li
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Weijia Zheng
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Yudan Zhang
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine , Cairo University , 12211 Giza , Egypt
- Department of Medical Pharmacology, Medical Faculty , Ataturk University , 25240 Erzurum , Turkey
| | - Ahmet Hacımüftüoğlu
- Department of Medical Pharmacology, Medical Faculty , Ataturk University , 25240 Erzurum , Turkey
| | - Jing Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Key Laboratory of Agro-Product Quality and Safety, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Product Quality and Safety , Ministry of Agriculture , Beijing 100081 , P.R. China
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Synthesized carbon nanodots for simultaneous extraction of personal care products and organophosphorus pesticides in wastewater samples prior to LC-MS/MS determination. Anal Bioanal Chem 2019; 411:6173-6187. [DOI: 10.1007/s00216-019-02009-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/20/2019] [Accepted: 07/01/2019] [Indexed: 10/26/2022]
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15
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Aladaghlo Z, Fakhari AR. Development of a new solvent‐assisted dispersive solid‐phase extraction followed by ion mobility spectrometry for trace determination of organophosphorus pesticides in environmental water samples. SEPARATION SCIENCE PLUS 2019. [DOI: 10.1002/sscp.201900031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Kadar A, Peyre L, de Souza G, Wortham H, Doumenq P, Rahmani R. An accurate and robust LC-MS/MS method for the quantification of chlorfenvinphos, ethion and linuron in liver samples. CHEMOSPHERE 2017; 184:20-26. [PMID: 28577486 DOI: 10.1016/j.chemosphere.2017.05.157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/16/2017] [Accepted: 05/28/2017] [Indexed: 06/07/2023]
Abstract
A method for the determination of chlorfenvinphos, ethion and linuron in liver samples by LC-MS/MS is described. Sample treatment was performed by using Sola™ polymeric reverse phase SPE cartridges after protein precipitation. Gradient elution using 10 mM ammonium formate in methanol (A) and 10 mM ammonium formate in water (B) was used for chromatographic separation of analytes on a Hypersil™ end-capped Gold PFP reverse phase column (100 mm × 2.1 mm, 3 μm). All analytes were quantified without interference, in positive ionization mode using multiple reaction monitoring (MRM) with chlorfenvinphos-d10 as internal standard. The whole procedure was validated according to the FDA guidelines for bioanalytical methods. The calibration curves for chlorfenvinphos, linuron and ethion compounds were linear over the concentration range of 0.005-2 μM (i.e. 0.0018-0.720 μg/mL, 0.0019-0.770 μg/mL and 0.0012-0.500 μg/mL respectively) with coefficients of determination higher than 0.998. A Lower limit of quantification of 0.005 μM was achieved for all analytes, i.e. 5.76, 6.08 and 3.84 μg/kg of liver for chlorfenvinphos, ethion and linuron respectively. Compounds extraction recovery rates ranged from 92.9 to 99.5% with a RSD of 2.3%. Intra- and inter-day accuracies were within 90.9 and 100%, and imprecision varied from 0.8 to 8.2%. Stability tests proved all analytes were stable in liver extracts during instrumental analysis (+12 °C in autosampler tray for 72 h) at the end of three successive freeze-thaw cycles and at -20 °C for up to 9 months. This accurate and robust analytical method is therefore suitable for contamination or metabolism studies.
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Affiliation(s)
- Ali Kadar
- Aix Marseille Univ, CNRS, LCE, Marseille, France; INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France.
| | - Ludovic Peyre
- INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France
| | - Georges de Souza
- INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France
| | | | | | - Roger Rahmani
- INRA, UMR 1331 TOXALIM, Laboratoire de Toxicologie Cellulaire et Moléculaire des Xénobiotiques, BP 167, 400 Route des Chappes, 06903, Sophia Antipolis Cedex, France
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HU TT, LU CM, LI H, ZHANG ZX, ZHAO YH, LI J. Determination of Eleven Organophosphorus Pesticide Residues in Textiles by Using HPLC-HRMS. ANAL SCI 2017; 33:1027-1032. [DOI: 10.2116/analsci.33.1027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Ting-Ting HU
- School of Public Health, Jilin University
- Department of Technical Center, Jilin Entry Exit Inspection and Quarantine Bureau
| | - Chun-Mei LU
- Department of Technical Center, Jilin Entry Exit Inspection and Quarantine Bureau
| | - Han LI
- School of Public Health, Jilin University
- Department of Nosocomial Infection Management, The First Hospital of Jilin University
| | | | - Yun-Hui ZHAO
- Department of Technical Center, Jilin Entry Exit Inspection and Quarantine Bureau
| | - Juan LI
- School of Public Health, Jilin University
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18
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Hao L, Li H, Lin JM. Fractional factorial design based microwave-assisted extraction for the determination of organophosphorus and organochlorine residues in tobacco by using gas chromatography-mass spectrometry. J Sep Sci 2017; 40:542-549. [PMID: 27863003 DOI: 10.1002/jssc.201600706] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 10/31/2016] [Accepted: 11/05/2016] [Indexed: 11/11/2022]
Abstract
Sample preparation is often the main bottleneck in analyzing biological samples. Particularly, effective evaluation of sample preparation conditions usually involves multiple factors and tedious and time-consuming experiments. In this study, fractional factorial design, specifically orthogonal array testing, was employed to screen and optimize multiple extraction parameters in concise but representative experiments. An efficient and sensitive method was developed to determine organophosphorus and organochlorine pesticide residues in tobacco, via microwave-assisted extraction and gas chromatography coupled with mass spectrometry detection. With orthogonal array design, screening, and optimization tests were subsequently conducted to determine the range, impact rank, and possible interactions of extraction temperature, time, microwave power, additive salt, and additive water. Orthogonal array testing selectively reduces the size and cost of experiments and meanwhile provides more information compared to the traditional experimental design that optimizes one factor at a time. A good linear range (0.02-2.00 μg/mL), limits of detection (0.001-0.098 μg/mL), and recovery rates (70.4-107.1%) were demonstrated by spiking known concentrations of multiple pesticide standards in tobacco samples. The established method was then successfully applied to the determination of multipesticide residues in raw tobacco leaves and commercial cigarettes.
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Affiliation(s)
- Ling Hao
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University, Beijing, P.R. China
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI, USA
| | - Haifang Li
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University, Beijing, P.R. China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University, Beijing, P.R. China
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Ferreira JA, Ferreira JMS, Talamini V, Facco JDF, Rizzetti TM, Prestes OD, Adaime MB, Zanella R, Bottoli CBG. Determination of pesticides in coconut ( Cocos nucifera Linn.) water and pulp using modified QuEChERS and LC–MS/MS. Food Chem 2016; 213:616-624. [DOI: 10.1016/j.foodchem.2016.06.114] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 06/06/2016] [Accepted: 06/30/2016] [Indexed: 11/25/2022]
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Wolf JC, Schaer M, Siegenthaler P, Zenobi R. Direct quantification of chemical warfare agents and related compounds at low ppt levels: comparing active capillary dielectric barrier discharge plasma ionization and secondary electrospray ionization mass spectrometry. Anal Chem 2014; 87:723-9. [PMID: 25427190 DOI: 10.1021/ac5035874] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A novel active capillary dielectric barrier discharge plasma ionization (DBDI) technique for mass spectrometry is applied to the direct detection of 13 chemical warfare related compounds, including sarin, and compared to secondary electrospray ionization (SESI) in terms of selectivity and sensitivity. The investigated compounds include an intact chemical warfare agent and structurally related molecules, hydrolysis products and/or precursors of highly toxic nerve agents (G-series, V-series, and "new" nerve agents), and blistering and incapacitating warfare agents. Well-defined analyte gas phase concentrations were generated by a pressure-assisted nanospray with consecutive thermal evaporation and dilution. Identification was achieved by selected reaction monitoring (SRM). The most abundant fragment ion intensity of each compound was used for quantification. For DBDI and SESI, absolute gas phase detection limits in the low ppt range (in MS/MS mode) were achieved for all compounds investigated. Although the sensitivity of both methods was comparable, the active capillary DBDI sensitivity was found to be dependent on the applied AC voltage, thus enabling direct tuning of the sensitivity and the in-source fragmentation, which may become a key feature in terms of field applicability. Our findings underline the applicability of DBDI and SESI for the direct, sensitive detection and quantification of several CWA types and their degradation products. Furthermore, they suggest the use of DBDI in combination with hand-held instruments for CWAs on-site monitoring.
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Affiliation(s)
- Jan-Christoph Wolf
- Department of Chemistry and Applied Bioscience, ETH Zurich , HCI E329, CH-8093 Zurich, Switzerland
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Ma G, Chen L. Determination of Chlorpyrifos in Rice Based on Magnetic Molecularly Imprinted Polymers Coupled with High-Performance Liquid Chromatography. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9636-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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