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Scheid C, Monteiro SA, Mello W, Velho MC, Dos Santos J, Beck RCR, Deon M, Merib J. A novel honeycomb-like 3D-printed device for rotating-disk sorptive extraction of organochlorine and organophosphorus pesticides from environmental water samples. J Chromatogr A 2024; 1722:464892. [PMID: 38608369 DOI: 10.1016/j.chroma.2024.464892] [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: 01/24/2024] [Revised: 03/18/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
In this study, 3D-printing based on fused-deposition modeling (FDM) was employed as simple and cost-effective strategy to fabricate a novel format of rotating-disk sorptive devices. As proof-of-concept, twenty organochlorine and organophosphorus pesticides were determined in water samples through rotating-disk sorptive extraction (RDSE) using honeycomb-like 3D-printed disks followed by gas chromatography coupled to mass spectrometry (GC-MS). The devices that exhibited the best performance were comprised of polyamide + 15 % carbon fiber (PA + 15 % C) with the morphology being evaluated through X-ray microtomography. The optimized extraction conditions consisted of 120 min of extraction using 20 mL of sample at stirring speed of 1100 rpm. Additionally, liquid desorption using 800 µL of acetonitrile for 25 min at stirring speed of 1100 rpm provided the best response. Importantly, the methodology also exhibited high throughput since an extraction/desorption platform that permitted up to fifteen simultaneous extractions was employed. The method was validated, providing coefficients of determination higher than 0.9706 for all analytes; limits of detection (LODs) and limits of quantification (LOQs) ranged from 0.15 to 3.03 μg L-1 and from 0.5 to 10.0 μg L-1, respectively. Intraday precision ranged from 4.01 to 18.73 %, and interday precision varied from 4.83 to 20.00 %. Accuracy was examined through relative recoveries and ranged from 73.29 to 121.51 %. This method was successfully applied to analyze nine groundwater samples from monitoring wells of gas stations in São Paulo. Moreover, the greenness was assessed through AGREEprep metrics, and an overall score of 0.69 was obtained indicating that the method proposed can be considered sustainable.
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Affiliation(s)
- Camila Scheid
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil
| | - Sofia Aquino Monteiro
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil
| | - Wendell Mello
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil
| | - Maiara Callegaro Velho
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil
| | - Juliana Dos Santos
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil
| | - Ruy Carlos Ruver Beck
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90610-000, Brazil
| | - Monique Deon
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil; Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil
| | - Josias Merib
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil; Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil.
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Fernandes G, Aparicio VC, De Gerónimo E, Prestes OD, Zanella R, Ebling E, Parisi PB, Mollmann VHDS, Reichert JM, Rheinheimer Dos Santos D. Epilithic biofilms as a discriminating matrix for long-term and growing season pesticide contamination in the aquatic environment: Emphasis on glyphosate and metabolite AMPA. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:166315. [PMID: 37604376 DOI: 10.1016/j.scitotenv.2023.166315] [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: 04/06/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 08/23/2023]
Abstract
The indiscriminate use of pesticides represents high ecological risk in aquatic systems. Recently, the inclusion of epilithic biofilms as a reactive matrix has shown potential in diagnosing the health of water resources. The objective of this study was to use multiple matrices (water, suspended sediments, and biofilms) to discriminate contamination degrees in catchments with long and recent history of intensive pesticide use and to monitor growing season pesticides transfer to watercourses. Two catchments were monitored: one representative of "modern agriculture" in a subtropical environment, and another representative of recent agricultural expansion over the Pampa Biome in subtropical Brazil. Glyphosate and AMPA were accumulated in the biofilms and were detected at all sites and at all monitoring times, in concentrations ranging from 195 to 7673 μg kg-1 and from 225 to 4180 μg kg-1, respectively. Similarly, the fungicide tebuconazole has always been found in biofilms. The biofilms made it possible to discriminate the long-term history of pesticide use in the catchments and even to identify the influx pulses of pesticides immediately after their application to crops, which was not possible with active water sampling and even with suspended sediment monitoring. It is strongly recommended that, in regions with intensive cultivation of soybeans and other genetically modified crops, the presence of glyphosate and its metabolite AMPA be permanently monitored, a practice still very scarce in the literature.
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Affiliation(s)
- Gracieli Fernandes
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil.
| | - Virginia Carolina Aparicio
- Instituto Nacional de Tecnología Agropecuaria INTA EEA Balcarce, Ruta Nacional 226, Km 73,5, Balcarce CP 7620, Buenos Aires, Argentina
| | - Eduardo De Gerónimo
- Instituto Nacional de Tecnología Agropecuaria INTA EEA Balcarce, Ruta Nacional 226, Km 73,5, Balcarce CP 7620, Buenos Aires, Argentina
| | - Osmar Damian Prestes
- Laboratory of Pesticide Residues Analysis (LARP), Chemistry Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Residues Analysis (LARP), Chemistry Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Ederson Ebling
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Pedro Bolzan Parisi
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Victor Hugo Dos Santos Mollmann
- Graduate Program in Animal Biodiversity, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - José Miguel Reichert
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Danilo Rheinheimer Dos Santos
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil; Foreign Visiting Professors at University of Limoges, (2022-2023) France
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De Caroli Vizioli B, Silva da Silva G, Ferreira de Medeiros J, Montagner CC. Atrazine and its degradation products in drinking water source and supply: Risk assessment for environmental and human health in Campinas, Brazil. CHEMOSPHERE 2023:139289. [PMID: 37348619 DOI: 10.1016/j.chemosphere.2023.139289] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/07/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Atrazine is a broad-spectrum herbicide widely used worldwide to control grassy and broadleaf weeds. Atrazine's popularity is attributable to its cost-effectiveness and reliable performance. Relatedly, it is also an important micropollutant with a potential negative impact on biodiversity and human health. Atrazine has long been regularly detected in several environmental compartments, and its widespread use has resulted in ubiquitous and unpreventable contamination. Among pesticides sold in Brazil, atrazine has remained among the top-ranked active ingredients for the last several years. Thus, this study aimed to evaluate the occurrence of atrazine and three degradation products (hydroxyatrazine, desisopropylatrazine, and desethylatrazine) in surface water (Capivari and Atibaia rivers) and treated water, monthly sampling from two drinking water treatment plants in Campinas (São Paulo, Brazil). An analytical method using solid-phase extraction (SPE) and liquid chromatography tandem mass spectrometry (LC-MS/MS) was developed to determine target compounds simultaneously. The method presented instrument quantification limits from 0.5 to 4.0 ng mL-1 and recovery values from 80 to 112%, with a maximum relative standard deviation of 6%. All analytes had a detection frequency of 100% from 2 to 2744 ng L-1. Statistical analysis showed no analyte removal after conventional water treatment. Also, the Capivari River showed greater analyte concentration than the Atibaia River. Performed risk assessments according to current Brazilian standards showed no human and environmental health risks. However, other risk assessment approaches may indicate potential risks, advocating for further research and ongoing surveillance.
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Affiliation(s)
- Beatriz De Caroli Vizioli
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, Campinas, SP, 13083-970, Brazil
| | - Giulia Silva da Silva
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, Campinas, SP, 13083-970, Brazil
| | - Jéssyca Ferreira de Medeiros
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, Campinas, SP, 13083-970, Brazil
| | - Cassiana Carolina Montagner
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, Campinas, SP, 13083-970, Brazil.
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Narayanan M, Singh Chauhan NP, Perumal P. A highly efficient metal oxide incorporated metal organic framework [Nd 2O 3-MIL(Fe)-88A] for the electrochemical detection of dichlorvos. RSC Adv 2023; 13:5565-5575. [PMID: 36798612 PMCID: PMC9926162 DOI: 10.1039/d2ra07877e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/24/2023] [Indexed: 02/16/2023] Open
Abstract
In this study, a Nd2O3@MIL(Fe)-88A composite was prepared through a hydrothermal method and used to detect dichlorvos. The XRD result demonstrated that the prepared sensor is highly crystalline in nature. The affinity of metal oxide and MIL(Fe)-88A could be utilised to overcome low stability and sensitivity owing to their synergistic and electronic effects. Differential pulse voltammetry (DPV) exhibits the electrocatalytic behaviour of Nd2O3@MIL(Fe)-88A; it functions at a lower potential at -0.5 to 0.8 V and has a wide linear range of 1-250 nM. It shows a very low detection limit of 0.92 nM with good sensitivity (4.42 mA nM-1) and selectivity. The developed Nd2O3@MIL(Fe)-88A sensor was successfully applied to detect dichlorvos in real analysis. The recovery range calculated for cabbage and orange extracts was 96-97% and 99.5-103.4%, respectively, and RSD% calculated for cabbage and orange extracts was from 1.40 to 3.39% and from 0.64 to 2.26%, respectively.
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Affiliation(s)
- Mariyammal Narayanan
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603 203 Tamil Nadu India +91 9688538842
| | | | - Panneerselvam Perumal
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603 203 Tamil Nadu India +91 9688538842
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Honda L, Arismendi D, Richter P. Integration of rotating disk sorptive extraction and dispersive-solid phase extraction for the determination of estrogens and their metabolites in urine by liquid chromatography/mass spectrometry. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Zhang Y, Tan L, Wang K, Wang N, Wang J. Highly Efficient Selective Extraction of Chlorpyrifos Residues from Apples by Magnetic Microporous Molecularly Imprinted Polymer Prepared by Reversible Addition-Fragmentation Chain Transfer Surface Polymerization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1046-1055. [PMID: 36621942 DOI: 10.1021/acs.jafc.2c06236] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Chlorpyrifos, as a moderate toxic organophosphorus pesticide, is prone to lingering in the environment and cannot be monitored easily. In this study, a magnetic, microporous, molecularly imprinted polymer was synthesized by using the reversible addition-fragmentation chain transfer polymerization method. The synthesized materials were properly characterized in terms of morphology, selectivity, and sorption capacity and used as sorbents for magnetic solid phase extraction for the selective determination of chlorpyrifos in apple samples. Results showed that the magnetic microporous molecularly imprinted materials were rough and porous spheres at an average size of 5 nm. The materials were highly selective toward chlorpyrifos with a superior sorption capacity of 167.99 mg·g-1 and were resistant to the interference of competitive pollutants. After optimization, the recoveries of chlorpyrifos reached 96.2-106.5%, and the detection limit was 0.028 μg·kg-1 by HPLC. Based on these analytical validation results, the developed method could be effective at determining chlorpyrifos in apples.
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Affiliation(s)
- Yuewei Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266100, China
| | - Liju Tan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266100, China
| | - Kunpeng Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266100, China
| | - Na Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266100, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266100, China
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Perin M, Dallegrave A, Suchecki Barnet L, Zanchetti Meneghini L, de Araújo Gomes A, Pizzolato TM. Pharmaceuticals, pesticides and metals/metalloids in Lake Guaíba in Southern Brazil: Spatial and temporal evaluation and a chemometrics approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148561. [PMID: 34175608 DOI: 10.1016/j.scitotenv.2021.148561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 05/06/2023]
Abstract
Compiling and reporting data related to the presence of pharmaceuticals and pesticides are crucial means of assessing the risk those chemicals pose to human health and environment. Data sets from different sources were combined using a data fusion approach to produce a spatial and temporal variation of contaminants presents in water from Lake Guaíba (29°55'-30°24' S; 51°01'-51°20' W). Lake Guaíba is a 496 km2 water body situated in the geological depression of Rio Grande do Sul State, Brazil; that is fed by several rivers from the metropolitan area, the 5th largest metro area in Brazil, with approximately 5 million inhabitants. Analytical methodology to quantify pharmaceuticals and pesticides by LC-QTOF-MS and GC-MS/MS was validated for 41 pharmaceutical and 62 pesticides. Furthermore, 27 chemical elements were analyzed by ICP-MS, and physical chemical parameters were determined using established methodologies. All validation parameters were in accordance with the National Institute of Metrology, Standardization, and Industrial Quality. Thirty-five water samples were analyzed from January to August 2019, and 15 pharmaceuticals and 25 pesticides were present in concentrations ranging from 6.00 ng L-1 to 580.00 ng L-1. Twenty-seven elements were analyzed during the same period, and 18 were present in concentrations ranging from 0.2 μg L-1 to 7060 μg L-1. Samples were tagged according to the points and months of collection to identify temporal and spatial patterns. The main findings show that the compounds are distributed throughout the studied area without an apparent regular pattern, suggesting that events in a specific point affect the entire ecosystem. Conversely, temporal variations were well defined, as samples were grouped according to the climatic conditions of the months of collection. Considering the calculated quotient risks, atrazine, cyproconazole, diuron, and simazine showed the highest risk levels for algae; acetaminophen, diclofenac, and ibuprofen showed the highest risk levels for aquatics invertebrates.
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Affiliation(s)
- Maurício Perin
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Alexsandro Dallegrave
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Lucas Suchecki Barnet
- Laboratório Federal de Defesa Agropecuária - LFDA, Ministério da Agricultura, Pecuária e Abastecimento do Brasil, Estrada da Ponta Grossa 3036, 91780-580 Porto Alegre, RS, Brazil
| | - Leonardo Zanchetti Meneghini
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Adriano de Araújo Gomes
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Tânia Mara Pizzolato
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil.
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Green method to determine triazine pesticides in water using Rotating Disk Sorptive Extraction (RDSE). Heliyon 2021; 7:e07878. [PMID: 34522798 PMCID: PMC8426532 DOI: 10.1016/j.heliyon.2021.e07878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/23/2020] [Accepted: 08/23/2021] [Indexed: 11/17/2022] Open
Abstract
The following work presents the development of the solid phase extraction technique with rotary disk (RDSE) in which the analysis for seven triazines in surface waters was first implemented. All the variables involved in extraction have been studied and optimized using a solid phase of octadecyl (C18) deposited on surface of the disk. Triazines were analyzed quantitatively by gas chromatography with simple quadruple mass detector, recoveries obtained for seven triazines were between 80% and 120%, accuracy expressed as RSD was between 3.21% and 6.34%, and detection limit of the method was between 0.020-0.056 μgL-1 according to each analyte, which indicates a good reproducibility and precision of the method. Finally, the method was applied to analyze the objective compounds in water samples obtained in the Bolo River (Palmira-Colombia), in which triazines were not detected.
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Andrade Teixeira R, Fonseca Dinali LA, Leijoto de Oliveira H, da Silva ATM, Bastos Borges K. Efficient and selective extraction of azamethiphos and chlorpyrifos residues from mineral water and grape samples using magnetic mesoporous molecularly imprinted polymer. Food Chem 2021; 361:130116. [PMID: 34029898 DOI: 10.1016/j.foodchem.2021.130116] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/18/2022]
Abstract
A magnetic mesoporous molecularly imprinted polymers was synthesized on the surface of magnetic nanoparticles silanized with 3-(trimethoxysilyl) propyl methacrylate to introduce reactive methacrylate groups. Subsequently, methacrylic acid monomers were grafted onto the surface of this adsorbent functionalized via polymerization by precipitation. Magnetic mesoporous molecularly imprinted polymer was properly characterized by different techniques and applied as adsorbent in magnetic solid phase extraction for selective determination of two organophosphorus pesticides, azamethiphos and chlorpyrifos, in mineral water and grape samples. After sample preparation optimization, recoveries of 99.56% and 98.86% were obtained for azamethiphos and chlorpyrifos, respectively. The magnetic solid phase extraction coupled to HPLC-UV presented limit of quantification of 5 ng mL-1, linearity ranged of 5 to 1000 ng mL-1, in addition to adequate accuracy, precision and robustness. The pesticides showed stability in the matrix and were satisfactorily quantified in real mineral water and grape samples.
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Affiliation(s)
- Roseane Andrade Teixeira
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei (UFSJ), Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Laíse Aparecida Fonseca Dinali
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei (UFSJ), Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Hanna Leijoto de Oliveira
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei (UFSJ), Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Anny Talita Maria da Silva
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei (UFSJ), Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei (UFSJ), Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil.
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11
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Evaluation of Thin Film Microextraction for trace elemental analysis of liquid samples using LIBS detection. Talanta 2021; 223:121736. [PMID: 33298263 DOI: 10.1016/j.talanta.2020.121736] [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: 06/28/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 11/24/2022]
Abstract
An analytical methodology based in the combination of Thin Film Microextraction with Laser-induced Breakdown Spectroscopy (TFME-LIBS) was investigated, for the first time, for detection of Cu, Cr, Ni and Pb in aqueous solutions. In this methodology, the analytes were extracted in a thin film of adsorbent material deposited on a solid support, which was introduced in the sample to analyse. After extraction, the analytes retained in the adsorbent were analysed by LIBS. In order to obtain adsorbent films useful for the microextraction step, two different experimental procedures for film generation, denoted as Drop Casting Deposition and Mould Deposition, were evaluated. In both cases, graphene oxide was used as adsorbent material. The mould deposition procedure was found to produce more homogeneous graphene oxide layers, leading to more uniform distribution of the adsorbed analytes on the graphene oxide surface. Experimental parameters affecting the TFME procedure, such as the adsorbent amount and extraction time, were studied. Under optimum microextraction conditions, the analytical figures of merit of the proposed TFME-LIBS method were evaluated, leading to limits of detection ranging from 41 μg kg-1 and 52 μg kg-1. Method trueness, evaluated from the analysis of a real sample of bottle water, led to recovery values about 70%, indicating the existence of strong matrix effects probably due to the presence of major cations in the bottle water. After 50% dilution of the sample with deionized water, recoveries values improved to 100%-108%.
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Demir Ö, Ulusoy Hİ, Özer ET, Osman B. Development of a new solid phase extraction method for sensitive determination of some carbamate pesticides in water using poly(EGDMA-MATrp) microbeads. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Arias PG, Martínez-Pérez-Cejuela H, Combès A, Pichon V, Pereira E, Herrero-Martínez JM, Bravo M. Selective solid-phase extraction of organophosphorus pesticides and their oxon-derivatives from water samples using molecularly imprinted polymer followed by high-performance liquid chromatography with UV detection. J Chromatogr A 2020; 1626:461346. [DOI: 10.1016/j.chroma.2020.461346] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 01/07/2023]
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14
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Application of bar adsorptive microextraction (BAµE) for the determination of pesticides and emerging contaminants in water used for rice cultivation in southern Brazil. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2779-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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Vieira CM, Mafra G, Brognoli R, Richter P, Rosero-Moreano M, Carasek E. A high throughput approach to rotating-disk sorptive extraction (RDSE) using laminar cork for the simultaneous determination of multiclass organic micro-pollutants in aqueous sample by GC-MS. Talanta 2020; 208:120459. [DOI: 10.1016/j.talanta.2019.120459] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 01/18/2023]
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Chen S, Wan S, Lan Q, Zheng Y, Zhu X. Magnetic graphene oxide-ultrathin nickel–organic framework composite for the extraction and determination of epoxiconazole in food samples. RSC Adv 2020; 10:44793-44797. [PMID: 35516262 PMCID: PMC9058641 DOI: 10.1039/d0ra08650a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 12/02/2020] [Indexed: 11/30/2022] Open
Abstract
In this work, a magnetic graphene oxide-ultrathin metal–organic framework composite (Fe3O4@SiO2-GO-Ni-MOF) was synthesized for the first time. Employing Fe3O4@SiO2-GO-Ni-MOF composite as extractant, a novel method for the separation and analysis of the pesticide epoxiconazole was established with the assistance of high performance liquid chromatography (HPLC). The adsorption mechanisms were studied including by adsorption kinetics, thermodynamic parameters and adsorption isotherms. The experimental results showed that this method was convenient, operable, effective and practical for the extraction and determination of epoxiconazole in real samples. Schematic illustration for the MSPE procedures.![]()
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Affiliation(s)
- Songqing Chen
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Suyu Wan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Qingchun Lan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yan Zheng
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Xiashi Zhu
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
- College of Guangling
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Arismendi D, Becerra-Herrera M, Cerrato I, Richter P. Simultaneous determination of multiresidue and multiclass emerging contaminants in waters by rotating-disk sorptive extraction–derivatization-gas chromatography/mass spectrometry. Talanta 2019; 201:480-489. [DOI: 10.1016/j.talanta.2019.03.120] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/29/2019] [Accepted: 03/31/2019] [Indexed: 10/27/2022]
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Molecularly imprinted graphite spray ionization-ion mobility spectrometry: application to trace analysis of the pesticide propoxur. Mikrochim Acta 2019; 186:396. [PMID: 31161360 DOI: 10.1007/s00604-019-3467-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/29/2019] [Indexed: 10/26/2022]
Abstract
A porous graphite sheet modified by a molecularly imprinted polymer (MIP) was directly used as the spray ionization source for ion mobility spectrometry (IMS). Therefore, it was possible to selectively analyze samples extracted by the molecularly imprinted polymer. This obviates the need for the steps of elution, solvent evaporation, dissolution and injection. To prepare the sheet, the graphite surface was first modified by electrodeposition of a molecularly imprinted polypyrrole film. This polypyrrole film was fabricated in a three-electrode electrochemical system using cyclic voltammetry. The electropolymerization of the graphite sheet was carried out with LiClO4 as a supporting electrolyte in the reaction solution. The effects of the amount of monomer, the level of template concentrations, and the time of polymerization on the extraction efficiency of the MIP film were evaluated. The extraction conditions including extraction time, the extraction temperature, the pH values, the salt concentrations, and the stirring rate were also studied. Methanol was selected as the most suitable solvent for both desorption and ionization which occur simultaneously. The pesticide propoxur (acting as a test compound) was extracted from water samples and directly analyzed using IMS. The analytical parameters (working range: 1.0 to 250 ng·mL-1; detection limit: 0.3 ng·mL-1) indicated that the direct coupling of MIP and IMS has a great potential in terms of reproducibility, and speed of the analysis, while maintaining acceptable sensitivity. Graphical abstract Schematic presentation of molecularly imprinted graphite spray ionization coupled with ion mobility spectrometry (IMS) for rapid/selective extraction and ionization: Application to the pre-concentration of propoxur prior to its quantification by IMS.
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Solid phase extraction of pesticides from environmental waters using an MSU-1 mesoporous material and determination by UPLC-MS/MS. Talanta 2019; 199:612-619. [PMID: 30952305 DOI: 10.1016/j.talanta.2019.02.092] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 01/08/2023]
Abstract
This paper describes the synthesis of a silica based MSU-1 mesoporous solid and its application as sorbent in solid-phase extraction to pre-concentrate thirteen pesticides of low-high polarity (methomyl, cymoxanil, carbofuran, monolinuron, isoproturon, methidathion, methiocarb, malathion, phosalone, diazinon, penconazole, neburon and chlorotoluron) in ground and river water. The synthesis was based in an H-bonding interaction assembling (I0N0) between two non-ionic components (the inorganic silica surface, I0 and the polyethylene oxide template, N0) by adding tetraethoxysilane to the non-ionic surfactant Brij®100, the latter previously dissolved in HCl 1 M. 50 mL water samples adjusted at pH= 3.5 were passed, at a flow rate of 5 mL/min, through a home-made cartridge containing 50 mg of MSU-1 sorbent, pre-conditioned with 5 mL of ultrapure water; then, the cartridge was washed with 5 mL of ultrapure water. Following elution with 5 mL of acetonitrile, the pesticides were determined by ultra performance liquid chromatography coupled to triple quadrupole-mass spectrometry. Two selected reaction monitoring transitions were monitored per compound, the most intense one being used for quantification and the second one for confirmation. Three points were used for identification, as established in the Directive 96/23/EC for LC-MS/MS analysis, which deals with confirmatory methods for organic residues and contaminants listed in the Group B (veterinary drugs and contaminants). Medium matrix effect (|20%|<ME<|50%|) was found for methiocarb and malathion, whereas diazinon and phosalone showed strong matrix effect (ME≥>|50%|). Therefore, the standard addition methodology was applied by adding an adequate amount of the pesticide standard mixture to the final sample extract. All pesticides were quantified using this approach for practical reasons, thus avoiding two different calibrations. The method quantification limit (MQL) of pesticides was 0.01 μg/L for all of them, except for diazinon (0.1 μg/L). Recoveries of the target pesticides at MQL and 0.25 µg/L concentration levels in blank river water were in the range 70.1-113.5% and 86.7-107.3%, respectively, with RSDs lower than 16.3% and 15.7%, respectively. Four ground water samples and three river water samples, taken from Almería (Spain), were analyzed by the proposed method and only phosalone at a concentration level of 0.05 µg/L was found in one river water sample.
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Al'Abri AM, Abdul Halim SN, Abu Bakar NK, Saharin SM, Sherino B, Rashidi Nodeh H, Mohamad S. Highly sensitive and selective determination of malathion in vegetable extracts by an electrochemical sensor based on Cu-metal organic framework. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:930-941. [PMID: 31407615 DOI: 10.1080/03601234.2019.1652072] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
This article demonstrates the first application of a copper-based porous coordination polymer (BTCA-P-Cu-CP) as a carbon paste electrode (CPE) modifier for the detection of malathion. The electrochemical behavior of BTCA-P-Cu-CP/CPE was explored using cyclic voltammetry (CV) while chrono-amperometry methods were applied for the analytical evaluation of the sensor performance. Under optimized conditions, the developed sensor exhibited high reproducibility, stability, and wide dynamic range (0.6-24 nM) with the limits of detection and sensitivity equal to 0.17 nM and 5.7 µAnMcm-1, respectively, based on inhibition signal measurement. Furthermore, the presence of common coexisting interfering species showed a minor change in signals (<4.4%). The developed sensor has been applied in the determination of malathion in spiked vegetable extracts. It exhibited promising results in term of fast and sensitive determination of malathion in real samples at trace level with recoveries of 91.0 to 104.4%. (RSDs < 5%, n = 3). A comparison of the two studied techniques showed that the HPLC technique is unable to detect malathion when the concentration is lower than 1.8 µM while 0.006 µM is detected with appropriate RSDs 0.2-5.2% (n = 3) by amperometric method. Due to the high sensitivity and selectivity, this new electrochemical sensor will be useful for monitoring trace malathion in real samples.
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Affiliation(s)
- Aisha Mohammed Al'Abri
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
- Ministry of Education, Muscat, Sultanate of Oman
| | | | - Nor Kartini Abu Bakar
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
| | - Siti Munirah Saharin
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
| | - Bibi Sherino
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
- Department of Chemistry, Sardar Bahadur Khan Women University, Quetta, Pakistan
| | - Hamid Rashidi Nodeh
- Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
- Centre for Ionic Liquids (UMCiL), University of Malaya, Kuala Lumpur, Malaysia
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21
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Francesquett JZ, Rizzetti TM, Cadaval TRS, Prestes OD, Adaime MB, Zanella R. Simultaneous determination of the quaternary ammonium pesticides paraquat, diquat, chlormequat, and mepiquat in barley and wheat using a modified quick polar pesticides method, diluted standard addition calibration and hydrophilic interaction liquid chromatography coupled to tandem mass spectrometry. J Chromatogr A 2018; 1592:101-111. [PMID: 30638711 DOI: 10.1016/j.chroma.2018.12.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/24/2018] [Accepted: 12/27/2018] [Indexed: 10/27/2022]
Abstract
In this study, a modified Quick Polar Pesticides (QuPPe) method, optimized by a central composite design, was developed to determine quaternary ammonium pesticides (QUATs) residues in barley and wheat by ultra-high-performance liquid chromatographic tandem mass spectrometry (UHPLC-MS/MS) using a hydrophilic interaction chromatography (HILIC) column. Considering the high polarity of these compounds, special conditions of sample preparation and analysis are required. Different mobile phases, extraction procedure and clean-up were evaluated. An isocratic elution with aqueous solution of ammonium formate 60 mmol L-1 (pH 3.7) and acetonitrile, 40:60 (v/v), was selected. Water and acidified methanol as extraction solvent, without heating, and a clean-up with dichloromethane, chitosan and acetonitrile presented good results. The validated method presented satisfactory selectivity, linearity, matrix effect, trueness and precision, providing recoveries from 93 to 110% with RSD < 13% for barley, and 70 to 115% with RSD < 18% for wheat. The complexity of these matrices requires the calibration in matrix and the diluted standard addition calibration (DSAC) procedure has been shown to be an excellent option to compensate for the matrix effect and the losses of the analytes in the extraction. Real samples of barley and wheat were analyzed and 60% presented concentrations of paraquat above the maximum limits allowed by the European Union. The modified QuPPe method combined with DSAC and HILIC-UHPLC-MS/MS demonstrated to be an effective approach to determine QUATs in barley and wheat, and is a good alternative for routine analysis. The use of the biosorbent chitosan is effective, low cost and more ecological when compared to others conventional sorbents.
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Affiliation(s)
- Janice Z Francesquett
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Tiele M Rizzetti
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Tito R S Cadaval
- School of Chemistry and Food, Federal University of Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Osmar D Prestes
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Martha B Adaime
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Residue Analysis (LARP), Chemistry Department, Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil.
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22
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Polymeric ionic liquid-based portable tip microextraction device for on-site sample preparation of water samples. J Chromatogr A 2018; 1564:34-41. [DOI: 10.1016/j.chroma.2018.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/30/2018] [Accepted: 06/03/2018] [Indexed: 12/25/2022]
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