Application of a single-drop microextraction for the analysis of organophosphorus pesticides in juice

Zhao, Ercheng; Han, Lijun; Jiang, Shuren; Wang, Qiuxia; Zhou, Zhiqiang

doi:10.1016/j.chroma.2006.03.011

Cited by 126 publications

(47 citation statements)

References 26 publications

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“…These values are similar to the recoveries reported by other authors for the MSPD extraction of several pesticides from fruit juices [12][13][14][15][16][17].…”

Section: Methods Validationsupporting

confidence: 90%

Determination of Insecticide Residues in Vegetal Fruits

Rodrigues

Carvalho

Sousa

et al. 2011

Chromatography Research International

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Pesticides compounds represent an important class of pollutants for food, soil and surface water resources. Thus, a simplified method using gas chromatography was used for determining five insecticide residues in fruit samples produced in Ceará State (Brazil). The insecticides were simultaneously extracted from the fruit samples with a mixture of water-methanol (1 : 1 %v/v) from lipid-containing crops and then reextracted with ethyl acetate. Cleanup by silica gel column chromatography was not necessary. The extracts were analyzed by GC-ECD. Analytical parameters, such as limit of detection (LOD), limit of quantification (LOQ), linearity, precision, and recovery were considered for the orange fruit. A sufficient recovery of 52.1, 57.0, 49.5, and 108.5% for parathion methyl, malathion, chlorpyrifos, and 2,4-dichlorophenol was found. The compounds 2,4-dichlorophenol, malathion, parathion methyl, and chlorpyrifos were found in all the fruit samples analyzed.

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“…These values are similar to the recoveries reported by other authors for the MSPD extraction of several pesticides from fruit juices [12][13][14][15][16][17].…”

Section: Methods Validationsupporting

confidence: 90%

Determination of Insecticide Residues in Vegetal Fruits

Rodrigues

Carvalho

Sousa

et al. 2011

Chromatography Research International

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“…The organic solvent drop is suspended at the tip of a microsyringe needle and exposed to the sample. After extraction, the microdrop is retracted back into the microsyringe and injected into either gas-or highperformance liquid chromatograph for further analysis [22]. SDME has the advantages of high extraction speed and simplicity.…”

Section: Introductionmentioning

confidence: 99%

Comparison of solid-phase and single-drop microextractions for headspace analysis of herbal essential oils

et al. 2009

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Abstract:The analytical microextraction methods of gas chromatography coupled with flame ionisation detector (GC-FID) for determination of selected essential oils in herbs were proposed. Two microextraction methods for the isolation of essential oils from plants such as Lavandula spica L., Melissa officinalis L., Mentha piperita L. and Salvia officinalis L. were used. The methods of solid-phase and single-drop microextractions, were optimised and compared. The obtained LOD values for all studied essential oils were found to be within 2.5-20.5 µg for SDME and 57.0-139.8 µg for SPME method per 100 g of dried sample leaves. The appropriate LOQ values were then 8.4-68.4 µg for SDME and 189.8-466.1 µg for SPME of target analytes per 100 g of dried sample leaves.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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“…The optimized static SDME procedure in conjugation with GC-FPD allowed good detection limits ranging from 0.21 to 0.56 µg/L. In the same year, Zhao et al (2006) also optimized a SDME procedure for extraction of seven OPPs (ethoprophos, diazinon, parathion methyl, fenitrothion, malathion, isocarbophos and quinalphos) in orange juices with analysis under GC-FPD. An effective extraction was achieved by suspending during 15 min a 1.6 µL drop of toluene to the tip of a microsyringe immersed in a 5 mL donor aqueous solution with 5 % (w/v) NaCl and stirred at 400 rpm.…”

Section: Fig 1 Schematic Illustration Of Direct Immersion Single-drmentioning

confidence: 99%

Current Trends in Liquid-Liquid Microextraction for Analysis of Pesticide Residues in Food and Water

Cunha¹,

Fernandes²,

Oliveira³

2011

Pesticides - Strategies for Pesticides Analysis

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Application of a single-drop microextraction for the analysis of organophosphorus pesticides in juice

Cited by 126 publications

References 26 publications

Determination of Insecticide Residues in Vegetal Fruits

Determination of Insecticide Residues in Vegetal Fruits

Comparison of solid-phase and single-drop microextractions for headspace analysis of herbal essential oils

Current Trends in Liquid-Liquid Microextraction for Analysis of Pesticide Residues in Food and Water

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