Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic–mass spectrometric determination of pesticides in green leafy vegetables

Tanaka, T; Hori, T.; Asada, Takashi; Oikawa, Kikuo; Kawata, Kuniaki

doi:10.1016/j.chroma.2007.10.060

Cited by 31 publications

(18 citation statements)

References 18 publications

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“…The technique that has received some interest is pressurized liquid extraction (PLE) or accelerated solvent extraction (ASE). The utility of PLE has been recently demonstrated for the determination of different pesticides with GC and/or LC-MS detection Soler, Mañes, & Picó, 2006;Pang et al, 2006c;Tanaka et al, 2007;Cho et al, 2008). Microwave-assisted extraction (MAE) of pesticides has not been well established and this is demonstrated by the limited number of related applications in the last 3 years (Singh, Foster, & Khan, 2007;Fuentes, Báez, & Quiñones, 2008).…”

Section: A Sample Preparationmentioning

confidence: 99%

Current mass spectrometry strategies for the analysis of pesticides and their metabolites in food and water matrices

Botitsi¹,

Garbis

Economou

et al. 2010

Mass Spectrometry Reviews

153

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Analysis of pesticides and their metabolites in food and water matrices continues to be an active research area closely related to food safety and environmental issues. This review discusses the most widely applied mass spectrometric (MS) approaches to pesticide residues analysis over the last few years. The main techniques for sample preparation remain solvent extraction and solid-phase extraction. The QuEChERS (Quick, Easy, Cheap, Effective, Rugged, Safe) approach is being increasingly used for the development of multi-class pesticide residues methods in various sample matrices. MS detectors-triple quadrupole (QqQ), ion-trap (IT), quadrupole linear ion trap (QqLIT), time-of-flight (TOF), and quadrupole time-of-flight (QqTOF)-have been established as powerful analytical tools sharing a primary role in the detection/quantification and/or identification/confirmation of pesticides and their metabolites. Recent developments in analytical instrumentation have enabled coupling of ultra-performance liquid chromatography (UPLC) and fast gas chromatography (GC) with MS detectors, and faster analysis for a greater number of pesticides. The newly developed "ambient-ionization" MS techniques (e.g., desorption electrospray ionization, DESI, and direct analysis in real time, DART) hyphenated with high-resolution MS platforms without liquid chromatography separation, and sometimes with minimum pre-treatment, have shown potential for pesticide residue screening. The recently introduced Orbitrap mass spectrometers can provide high resolving power and mass accuracy, to tackle complex analytical problems involved in pesticide residue analysis.

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Section: A Sample Preparationmentioning

confidence: 99%

Current mass spectrometry strategies for the analysis of pesticides and their metabolites in food and water matrices

Botitsi¹,

Garbis

Economou

et al. 2010

Mass Spectrometry Reviews

153

View full text Add to dashboard Cite

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“…As primeiras correntes da AO foram: Agricultura Biodinâmica; Agricultura Orgânica; Agricultura Organobiológica e Agricultura Natural [87,88] . Aproximadamente 90% da produção orgânica nacional de banana, soja e café é exportada como Dispersion -MSPD) [103,115,116] , extração líquida pressurizada (Pressurized Liquid Extraction -PLE) [117][118][119] , e extração sortiva em barras de agitação (Stir Bar Sorptive Extraction -SBSE) [120,121] . Existem várias técnicas de preparo de amostras para alimentos, porém os parâmetros principais que um analista deve levar em consideração para optar por uma técnica de extração são: número e classe de agrotóxicos, limite de quantificação, tipo de amostra e teor de gordura [122] .…”

Section: Produtos Orgânicos No Brasilunclassified

Morango: uma preocupação alimentar, ambiental e sanitária, monitorado por cromatografia líquida moderna

Oshita¹,

Jardim²

2012

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ResumoA presente revisão tem como objetivo reunir em um único manuscrito informações desde a produção agrícola do morango até os aspectos negativos que podem influenciar e atingir o meio ambiente ou gerarem preocupações com a saúde dos trabalhadores rurais e consumidores que tenham contato direto com o meio ambiente ou que consomem o morango in natura. O morango é uma das culturas que lideram, desde o ano de 2002, o ranking dos alimentos mais contaminados por resíduos de agrotóxicos no Brasil. A cromatografia líquida moderna é uma das técnicas analíticas mais desenvolvidas e empregadas para determinação de resíduos de agrotóxicos em alimentos. Palavras-chaveCLAE; agrotóxicos; morango. Strawberry: food, environmental and sanitary concerns, monitored by modern liquid chromatography AbstractThis review aims to present information in a single manuscript initiating with the agricultural production of strawberries and concluding with the negative aspects that influence environment or generate concerns about the health of farm workers and consumers who have direct contact with the environment or, even the consumers of fresh strawberries. Strawberry crops are those that leads, since the year 2002, the ranking of the foods most contaminated with pesticide residues in Brazil. Modern liquid chromatography is one of the most developed analytical techniques and is thus often employed for the determination of pesticide residues in foods.

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“…GCB served as an adsorbent enabling in-cell clean-up during extraction of pesticides by PLE, and the resultant extracts were clean enough to be analysed using GC-MS [14,17]. Since the extraction cell should have sufficient adsorbent capability [17], four different adsorbents were investigated. The use of silica and C 18 combined with Florisil led to intensely coloured extracts.…”

Section: Selection Of In-cell Clean-up Sorbentsmentioning

confidence: 99%

“…Several methods utilizing gas chromatography (GC) coupled with mass spectrometry (MS) for the analysis of organophosphorus and carbamate pesticides in fruits and vegetables have been published [17][18][19]. Liquid chromatography (LC) coupled with MS or tandem MS (MS/MS) has been applied for the determination of avermectins in biological tissues [20], milk [21,22], and water, sediments and soils [23].…”

Section: Introductionmentioning

confidence: 99%

Pesticides in seaweed: optimization of pressurized liquid extraction and in-cell clean-up and analysis by liquid chromatography–mass spectrometry

et al. 2012

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Chemical residues, such as insecticides and anthelmintics, are frequently redistributed from the aquatic environment to marine species. This work reports on a fast validated protocol for the analysis of azamethiphos, three avermectins, two carbamates and two benzoylurea pesticides and chemotherapeutic agents in seaweeds based on pressurized liquid extraction and separation of analytes by liquid chromatography coupled with tandem mass spectrometry. The variables affecting the efficiency of pressurized liquid extraction, including temperature, number of extraction cycles, static extraction time and percent acetonitrile flush volume, were studied using a Doehlert design. The optimum parameters were 100 °C and one cycle of 3 min with 70 % acetonitrile. Adequate in-cell clean-up of the seaweeds was achieved using 0.8 g of Florisil over 0.1 g of graphitized carbon black on the bottom of the cell. The optimized method was validated using an analyte-free seaweed sample fortified at different concentrations. The limits of quantification ranged from 3.6 μg kg(-1) (azamethiphos) to 31.5 μg kg(-1) (abamectin). The recovery was from 87 to 120 % in most cases at different spiking levels. Finally, the reproducibility of the method expressed as the relative standard deviation and evaluated at concentrations of 10 and 50 μg kg(-1) was in the range 9-14.3 % and 6.1-12.3 %, respectively. The applicability of the method was evaluated with five commercial and 12 wild edible seaweeds, and four target compounds were detected in two wild seaweeds at a concentration below the quantification limit.

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Simple one-step extraction and cleanup by pressurized liquid extraction for gas chromatographic–mass spectrometric determination of pesticides in green leafy vegetables

Cited by 31 publications

References 18 publications

Current mass spectrometry strategies for the analysis of pesticides and their metabolites in food and water matrices

Current mass spectrometry strategies for the analysis of pesticides and their metabolites in food and water matrices

Morango: uma preocupação alimentar, ambiental e sanitária, monitorado por cromatografia líquida moderna

Pesticides in seaweed: optimization of pressurized liquid extraction and in-cell clean-up and analysis by liquid chromatography–mass spectrometry

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