Multiresidue Determination and Uncertainty Analysis of Pesticides in Soil by Ultrafast Liquid Chromatography Coupled to Mass Spectrometry

Ahumada, Diego A.; Arias, Luis Alejandro; Bojacá, Carlos Ricardo

doi:10.5935/0103-5053.20130153

Cited by 3 publications

(2 citation statements)

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“…As a result, pesticide residues cannot be determined quickly, so there is a need to develop more portable and accurate new energy to residue detection tools. Electrochemical detection has greater advantages in pesticide residue detection due to its good stability, miniaturization, high sensitivity and rapid response [ 29 – 31 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors

et al. 2021

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Imidacloprid is a neonicotinoid insecticide widely used in the production and cultivation of crops. In recent years, the extensive use of imidacloprid in agricultural production has resulted in large amounts of pesticide residues in agricultural products and the environment. Therefore, it is necessary to establish a rapid, accurate, sensitive and convenient method for detecting imidacloprid pesticide residues to ensure the safety of agricultural products and the environment. To clarify how to use the molecular imprinting method for the electrochemical rapid residue detection of imidacloprid. This paper selected reduced graphene oxide and gold nanoparticles as modifiers modified on screen-printed carbon electrodes (SPCE) chitosan as a functional monomer, and imidacloprid as template molecule to prepare molecularly imprinted polymer, and applied this sensor to the residue detection of imidacloprid. The results showed that the concentration of imidacloprid showed a good linear relationship with the peak response current, and the detection limit of imidacloprid was 0.5 μM, while the sensor had good repeatability and interference resistance. The recoveries of imidacloprid spiked on three samples, mango, cowpea and water, were in the range of 90–110% (relative standard deviation, RSD<5%), which proved the practicality and feasibility of the assay established in this paper. The results of this paper can be used as a basis for the research on the detection of imidacloprid pesticide residues in food or environment.

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Section: Introductionmentioning

confidence: 99%

Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors

et al. 2021

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“…However, considering the diversity of chemicals entering the agricultural environment, a reliable analytical method that can quantify a much broader spectrum of contaminants from different chemical classes is necessary . For the simultaneous extraction of multiple compounds from soil, traditional sample preparation methods based on solvent extraction on a mechanical shaker or Soxhlet extraction have been replaced with high-pressure and/or high-temperature methods, such as ultrasound-assisted extraction, pressurized liquid extraction, supercritical fluid extraction, or microwave-assisted extraction which require expensive equipment. However, the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method, which was initially developed and standardized , for the determination of pesticides in food samples with high water content, has become popular over the conventional extraction methods owing to its high extraction efficiency achieved in a short time .…”

Section: Introductionmentioning

confidence: 99%

Validation of an Analytical Workflow for the Analysis of Pesticide and Emerging Organic Contaminant Residues in Paddy Soil and Rice

Sefiloglu

Tezel

Balcıoğlu

2021

J. Agric. Food Chem.

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Contamination of agricultural soil with organic contaminants is a global problem due to the risks associated with food security and ecological sustainability. Besides the use of agrochemicals, hundreds of emerging contaminants enter arable lands through polluted irrigation water. In this study, an analytical workflow based on QuEChERS extraction coupled with LC−MS/MS quantification was applied to measure 65 emerging contaminants (42 pesticides and 23 multiclass industrial chemicals) in soil and rice for the first time. The method was validated on paddy and yard soil and rice plants. A recovery efficiency ranging between 70 and 120% (RSD <20%) was achieved for more than 70% of the analytes. Then, the validated method was used to quantify target contaminants in 22 soil and 9 rice samples collected mainly from paddy fields close to the Ergene River (Turkey), which is a highly polluted river used for irrigation in the region. Pesticide residues were present in all soil samples up to 2.4 mg/kg. However, their concentrations were below their maximum residual limits in rice. Azoxystrobin, prochloraz, propiconazole, imidacloprid, and epoxiconazole were the most frequently detected pesticides. In addition, industrial pollutants such as benzyldimethyldodecylammonium and tris(2-butoxyethyl) phosphate were detected in paddy soil samples at concentrations between 0.1 and 691 μg/kg. Benzyldimethyldodecylammonium and 5-methyl-1H benzotriazole were also measured in rice at concentrations up to 0.26 and 2.13 μg/kg, respectively.

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Determination of nine pharmaceutical active compounds in surface waters from Paraopeba River Basin in Brazil by LTPE-HPLC-ESI-MS/MS

Barros

Schmidt

Aquino

et al. 2018

Environ Sci Pollut Res

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A simple, inexpensive, versatile, and environment-friendly extraction method, using low-temperature partitioning extraction (LTPE), was validated to quantify pharmaceutical-active compounds (PhACs) in surface water samples by high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). The PhACs analyzed were acetaminophen, bezafibrate, diclofenac, diltiazem, fluconazole, linezolid, miconazole, ondansetron hydrochloride, and trimethoprim. The detection and quantification limits ranged from 0.15 to 12.30 ng L and 0.43 to 40.60 ng L, respectively. Recovery rates ranged from 46 to 135%, and relative standard deviation (RSD%) varied between 0.49 and 6.13%. This method was applied to monitor water contamination by PhACs in the Paraopeba River Basin (PRB), Minas Gerais state, Brazil. All PhACs, except linezolid which was not detected, were found in PRB water samples in concentrations that ranged from 2.6 ng L to 2.62 μg L.

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Multiresidue Determination and Uncertainty Analysis of Pesticides in Soil by Ultrafast Liquid Chromatography Coupled to Mass Spectrometry

Cited by 3 publications

References 0 publications

Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors

Analysis of imidacloprid residues in mango, cowpea and water samples based on portable molecular imprinting sensors

Validation of an Analytical Workflow for the Analysis of Pesticide and Emerging Organic Contaminant Residues in Paddy Soil and Rice

Determination of nine pharmaceutical active compounds in surface waters from Paraopeba River Basin in Brazil by LTPE-HPLC-ESI-MS/MS

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