Determination of pyrethroid pesticides residues in vegetable oils using liquid–liquid extraction and dispersive liquid–liquid microextraction followed by gas chromatography–flame ionization detection

Farajzadeh, Mir Ali; Khoshmaram, Leila; Nabil, Ali Akbar Alizadeh

doi:10.1016/j.jfca.2014.03.004

Cited by 81 publications

(39 citation statements)

References 39 publications

(28 reference statements)

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“…To overcome these disadvantages, Rezaee et al developed a novel liquid phase microextraction technique termed dispersive liquidliquid microextraction (DLLME) [23], which is based on a ternary component solvent system. Some advantages of DLLME are simplicity of operation, rapidity, low sample volume, low cost and relatively high enrichment factors [24,25].…”

Section: Introductionmentioning

confidence: 99%

Development of counter current salting-out homogenous liquid–liquid extraction for isolation and preconcentration of some pesticides from aqueous samples

Farajzadeh

Feriduni

Mogaddam

2015

Analytica Chimica Acta

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Section: Introductionmentioning

confidence: 99%

Development of counter current salting-out homogenous liquid–liquid extraction for isolation and preconcentration of some pesticides from aqueous samples

Farajzadeh

Feriduni

Mogaddam

2015

Analytica Chimica Acta

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“…%ME was in the range 93-107 % for PAHs and 87-103 % for 3-MCPD (data not shown). Assuming that matrix effects occur when the %ME is higher than 20 % (Farajzadeh et al 2014), the matrix effects were not observed.…”

Section: Validation Protocolmentioning

confidence: 99%

Simultaneous Sample Preparation Method for Determination of 3-Monochloropropane-1,2-Diol and Polycyclic Aromatic Hydrocarbons in Different Foodstuffs

2016

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In the present study, a simultaneous sample preparation method for the determination of 3-monochloropropane-1,2-diol (3-MCPD) and polycyclic aromatic hydrocarbons (PAHs) in different foodstuffs has been evaluated. Sample preparation procedure involved acetonitrile extraction/ partitioning and cleanup by dispersive solid phase extraction with the final detection by gas chromatography coupled with mass spectrometry. The experiment demonstrated that freezing out of the sample extracts prior to dispersive solid phase extraction (d-SPE) cleanup step gave better results in removal of undesirable matrix constituents although with slightly lower recovery values. The addition of higher amount of MgSO 4 has contributed to increased values of polycyclic aromatic hydrocarbon recovery, in contrast to 3-MCPD for which the recoveries were insignificantly lower when MgSO 4 was added. Finally, a simultaneous chromatographic measurement has revealed that quantification of PAHs was not effective due to signal enhancement resulted from the presence of derivatisation products. However, the presented concept can be streamlined and an interesting analytical approach providing good validation parameter values: recoveries within the range 50-110 % for PAHs and 76-107 % for 3-MCPD, precision not exceeding 16.5 % (PAHs) and 7.7 % (3-MCPD) and quantification limits lower than 0.9 μg kg −1 for PAHs and 9.3 μg kg −1 for 3-MCPD.

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“…Recently, a new design of dispersive liquid–liquid microextraction (DLLME) termed as RP‐DLLME has been developed for the preconcentration and determination of phenolic compounds from olive processing wastewater and virgin olive oil . In other reports, several methodologies for the determination of pyrethroid pesticides, cadmium, lead, and different selenium species present in edible oils are introduced by using DLLME . In all studies, a low volume of an aqueous solution in the presence of water‐miscible organic solvent as disperser solvent was used as the extracting solvent.…”

Section: Introductionmentioning

confidence: 99%

Reversed‐phase vortex‐assisted liquid–liquid microextraction: A new sample preparation method for the determination of amygdalin in oil and kernel samples

Hosseini

Heydari

Alimoradi

2015

J of Separation Science

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A novel, simple, and rapid reversed-phase vortex-assisted liquid-liquid microextraction coupled with high-performance liquid chromatography has been introduced for the extraction, clean-up, and preconcentration of amygdalin in oil and kernel samples. In this technique, deionized water was used as the extracting solvent. Unlike the reversed-phase dispersive liquid-liquid microextraction, dispersive solvent was eliminated in the proposed method. Various parameters that affected the extraction efficiency, such as extracting solvent volume and its pH, vortex, and centrifuging times were evaluated and optimized. The calibration curve shows good linearity (r(2) = 0.9955) and precision (RSD < 5.2%) in the range of 0.07-20 μg/mL. The limit of detection and limit of quantitation were 0.02 and 0.07 μg/mL, respectively. The recoveries were in the range of 96.0-102.0% with relative standard deviation values ranging from 4.0 to 5.1%. Unlike the conventional extraction methods for plant extracts, no evaporative and re-solubilizing operations were needed in the proposed technique.

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Determination of pyrethroid pesticides residues in vegetable oils using liquid–liquid extraction and dispersive liquid–liquid microextraction followed by gas chromatography–flame ionization detection

Cited by 81 publications

References 39 publications

Development of counter current salting-out homogenous liquid–liquid extraction for isolation and preconcentration of some pesticides from aqueous samples

Development of counter current salting-out homogenous liquid–liquid extraction for isolation and preconcentration of some pesticides from aqueous samples

Simultaneous Sample Preparation Method for Determination of 3-Monochloropropane-1,2-Diol and Polycyclic Aromatic Hydrocarbons in Different Foodstuffs

Reversed‐phase vortex‐assisted liquid–liquid microextraction: A new sample preparation method for the determination of amygdalin in oil and kernel samples

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