Strategy for Correction of Matrix Effect on the Determination of Pesticides in Water Bodies Using SPME-GC-FID

Silva, Vitor P. A.; Paz, Mário; Cavalcante, Rivelino M.; Nascimento, Ronaldo F.

doi:10.21577/0103-5053.20160264

Cited by 6 publications

(3 citation statements)

References 40 publications

(48 reference statements)

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“…Sousa et al (2012) avaliaram o efeito matriz na análise de 11 agrotóxicos e verificaram que tomate, uva e abacaxi causaram maior efeito matricial quando comparados com amostras de maçã e batata. Silva et al (2017) concluíram que os agrotóxicos são muito suscetíveis ao efeito matriz promovido por amostras ambientais (água de rio).…”

Section: Resultsunclassified

Determinação de resíduo de bifentrina em banana após a colheita e na água de lavagem

Castricini

Oliveira

Cacique

et al. 2021

Braz. J. Food Technol.

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Resumo Na bananicultura, o uso de sacos impregnados por inseticida e a lavagem das pencas são técnicas que visam à qualidade dos frutos. Objetivou-se monitorar, por cromatografia em fase gasosa acoplada à espectrometria de massas, resíduo de bifentrina em bananas lavadas e não lavadas em tanques, assim como na água de lavagem dos frutos. Desde a emissão até a colheita, os cachos foram protegidos com sacos impregnados por bifentrina a 1,0 g kg-1, os quais foram retirados após a colheita, para despencamento e lavagem ou não das pencas em tanques com água, detergente e sulfato de alumínio. Os métodos Quick, Easy, Cheap, Effective, Rugged, Safe Method - QuEChERS e Extração Líquido – Líquido com Partição a Baixa Temperatura - ELL – PBT foram utilizados para extrair resíduo de bifentrina dos frutos no ponto de colheita e maduros, e da água, respectivamente. As porcentagens de recuperação de bifentrina foram 88,16%, 103,4% e 89,32%, na casca, na polpa e em casca + polpa, respectivamente, atendendo à legislação brasileira. No ponto de colheita, na casca e na casca + polpa dos frutos lavados, detectou-se 0,060 mg kg-1 e 0,010 mg kg-1, respectivamente. Quando não lavados, a concentração de bifentrina, na casca, foi de 0,31 mg kg-1 e de 0,16 mg kg-1, na casca + polpa. Não foi detectado resíduo de bifentrina na polpa, independente do estádio de maturação e lavagem, tampouco na água de lavagem. Em frutos maduros não lavados, foram quantificado 0,10 mg kg-1 e 0,040 mg kg1 de bifentrina na casca e em casca + polpa, respectivamente. A lavagem não elimina, mas reduz o resíduo de bifentrina na casca dos frutos no ponto de colheita e, quando maduros, somente os não lavados apresentam resíduo.

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Section: Resultsunclassified

Determinação de resíduo de bifentrina em banana após a colheita e na água de lavagem

Castricini

Oliveira

Cacique

et al. 2021

Braz. J. Food Technol.

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“…The possible chiral environment of the matrix (e.g., wastewater effluents contain a high variety of microorganisms, which is not expected in pharmaceuticals streams) can lead to differences in matrix effect for a pair of enantiomers. Additionally, as matrix effect results from different components which decrease or increase the analytical signal, it is expected to be more pronounced with increasing complexity of the matrix [59]. Therefore, matrix effect has to be estimated for each enantiomer in the matrices to be analyzed.…”

Section: Basic Concepts Of Chiralitymentioning

confidence: 99%

Occurrence of Chiral Bioactive Compounds in the Aquatic Environment: A Review

Ribeiro

Maia

et al. 2017

Symmetry

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Abstract:In recent decades, the presence of micropollutants in the environment has been extensively studied due to their high frequency of occurrence, persistence and possible adverse effects to exposed organisms. Concerning chiral micropollutants in the environment, enantiomers are frequently ignored and enantiomeric composition often neglected. However, enantioselective toxicity is well recognized, highlighting the need to include enantioselectivity in environmental risk assessment. Additionally, the information about enantiomeric fraction (EF) is crucial since it gives insights about: (i) environmental fate (i.e., occurrence, distribution, removal processes and (bio)degradation); (ii) illicit discharges; (iii) consumption pattern (e.g., illicit drugs, pharmaceuticals used as recreational drugs, illicit use of pesticides); and (iv) enantioselective toxicological effects. Thus, the purpose of this paper is to provide a comprehensive review about the enantioselective occurrence of chiral bioactive compounds in aquatic environmental matrices. These include pharmaceuticals, illicit drugs, pesticides, polychlorinated biphenyls (PCBs) and polycyclic musks (PCMs). Most frequently analytical methods used for separation of enantiomers were liquid chromatography and gas chromatography methodologies using both indirect (enantiomerically pure derivatizing reagents) and direct methods (chiral stationary phases). The occurrence of these chiral micropollutants in the environment is reviewed and future challenges are outlined.

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“…Solid phase microextraction (SPME) is an extraction technique that stands out for its practicality in terms of sample treatment, since there is no need for rigorous cleaning of the sample and avoid the use of organic solvents (Dórea, Gaujac & Navickiene, 2008;Valente & Augusto, 2000). Its application is widespread in many analyses, such as environmental, food, forensic, pharmaceutical matrices (Bojko et al, 2012;Silva et al, 2017). More recent studies using SPME fibers were capable to extract and identify many volatiles of melon (Cucumis melo L.) flowers (Silva et al, 2018) and to show Research, Society and Development, v. 9, n. 10, e5069108880, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i10.8880 that VOCs play a key role in the processes of attraction of pollinators (Fernandes, Silva, Aragão, Zocolo & Freitas, 2019).…”

Section: Introductionmentioning

confidence: 99%

Method for characterization of volatile organic compounds in the diet of Centris analis (Hymenoptera, Apidae, Centridini) immatures

Sousa

Silva

Freitas

et al. 2020

RSD

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This study tested three types of Solid-Phase Microextraction fibers in developing a method to extract volatile organic compounds present in the diet of immature Centris analis. Samples were placed in glass vials with metal lids and added with 3g NaCl and 8 ml deionized water. Extraction and characterization were carried out using a Headspace – Solid Phase Microextraction (HS-SPME) with Gas Chromatography – Mass Spectrometry, and the three types of fibers were polydimethylsiloxane (PDMS), divinylbenzene/ carboxen/ polydimethylsiloxane (DVB/CAR/PDMS) and carboxen/ polydimethylsiloxane (CAR/PDMS). Each type of fiber was exposed to volatiles for 30 min and analyzed in a chromatograph Agilent GC-MS equipped with a quadrupole detector (MSD 5977A), containing a HP-5MS (30 m x 0.25 mm x 0.25 µm) column and Helium as the carrier gas (1 ml.min-1). The CAR / PDMS fiber favored the extraction of volatile compounds to semi-volatile compounds, followed by DVB / CAR / PDMS, while PDMS presented a lower number of extracted compounds, which can be attributed to its apolar nature. The volatile compounds identified in the diet included alcohols, aldehydes, esters, ketones, and terpenes. The SPME technique has proven effective in the extraction of volatile organic compounds from immature of Centris analis diet, being the CAR/PDMS the most suitable fiber for this.

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Strategy for Correction of Matrix Effect on the Determination of Pesticides in Water Bodies Using SPME-GC-FID

Cited by 6 publications

References 40 publications

Determinação de resíduo de bifentrina em banana após a colheita e na água de lavagem

Determinação de resíduo de bifentrina em banana após a colheita e na água de lavagem

Occurrence of Chiral Bioactive Compounds in the Aquatic Environment: A Review

Method for characterization of volatile organic compounds in the diet of Centris analis (Hymenoptera, Apidae, Centridini) immatures

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