Optimization of a matrix solid-phase dispersion method for the analysis of pesticide residues in vegetables

Viana, E.; Moltó, J.C.; Font, Guillermina

doi:10.1016/s0021-9673(96)00538-9

Cited by 71 publications

(23 citation statements)

References 10 publications

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“…MSPD is a new extraction and clean-up analysis developed for MRMs 56 . This technique allows the extraction of pesticides from homogeneously dispersed food samples in a solid support such as the synthetic magnesium silicate (Florisil) or silica (C8 or C18).…”

Section: 6-matrix Solid-phase Dispersion (Mspd)mentioning

confidence: 99%

A gradual advancement of the extraction and cleanup techniques for residue analysis of pesticides in food matrices and liquid products: a review

Singh¹,

Dwevedi²,

Deopa³

et al. 2014

IOSRJESTFT

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Section: 6-matrix Solid-phase Dispersion (Mspd)mentioning

confidence: 99%

A gradual advancement of the extraction and cleanup techniques for residue analysis of pesticides in food matrices and liquid products: a review

Singh¹,

Dwevedi²,

Deopa³

et al. 2014

IOSRJESTFT

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“…Most applications of MSPD for pesticides analysis in food employ a reversed-phase material, particularly C18 and C8 (Navarro, 2002;Kristenson, 2001;Blasco, 2002) and sorbent Florisil (Viana, 1996). The sample preparation procedure should include chromatographic analysis and detection mainly in LOQs and selectivity.…”

Section: Introductionmentioning

confidence: 99%

MSPD as sample preparation method for determination of selected pesticide residues in apples

Purdešová¹,

Dömötörová

2017

Acta Chimica Slovaca

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A method for extraction and fast gas chromatographic (GC) determination of twenty pesticide residues of different volatility and polarity at ultratrace concentration level in apples is presented. Apples as representatives of non-fatty food were chosen as a matrix; they are also a common raw material for baby food production. Under fast GC conditions employing a mass spectrometric detector (MSD), several parameters of the MSPD procedure were optimised. Samples were homogenised with sorbent Florisil, pesticides were eluted with the optimised volume of etylacetate. After solvent evaporation to dryness, reconstitution of the rest to toluene follow and the final extract was injected. Recoveries obtained at three selected concentration levels were determined. The optimised procedure led to recoveries ≥ 90 % for the majority of the studied pesticides and the limits of quantification (LOQs) < 5 µg.kg -1 . Repeatability of gas chromatography-mass spectrometry (GC-MS) measurements of the matrix matched standards, expressed as the relative standard deviation (RSD [ %]), was in most cases acceptable for ultratrace concentration levels of pesticide residues.

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“…Liquid-liquid extraction (LLE) is one of the conventional methods still being used for the extraction of such pesticides from various matrices [9] [10]. Also, solid-phase extraction (SPE) [11]- [17], supercritical fluid extraction (SFE) [18], and matrix solid-phase dispersion (MSPD) [19] is the other more selective approach in this field. Generally, these methods are multistage, expensive, laborious, and consume long time as well as; in these methods, a large amount of organic solvents are applied to extract the analysts of interest [20].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Solid Phase Microextraction Procedure Followed by Gas Chromatography with Electron Capture Detector for Pesticides Butachlor and Chlorpyrifos

Ghavidel¹,

Shahtaheri²,

Jazani³

et al. 2014

AJAC

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In this study, headspace solid phase microextraction (HS-SPME) followed by gas chromatography using electron capture detection system (GC-ECD) were developed for the determination of chloraacetanilide (butachlor) and chlorpyrifos presented in biological samples. Different parameters affecting the extraction procedure were optimized including extraction time (30 minutes), extraction temperature (80˚C), sample volume (3 mL), sample pH (2), added NaCl (0.3 gram) and sample stirring rate (400 rpm). Different concentrations of 1 -100 ng/ml were applied for butachlor and a linear calibration curve was obtained. Furthermore, a similar linearity was obtained for chlorpyrifos, using a concentration range of 1 -250 ng/ml. The limit of detection (LOD) obtained for butachlor and chlorpyrifos were 0.088 and 0.53 ng/ml respectively. The optimized methods for both compounds were validated using two concentrations of 25 and 50 ng/ml in spiked urine samples. Obtained recoveries of spiked urine samples were 83.06% -99.8% with RSD of lower than 11%. Optimized technique was simple, inexpensive, solvent free and fast in comparison with other conventional methods and had compatibility with the chromatographic analytical system. This method offers low detection limits to analyze pesticides in urine samples that are very important * Corresponding author. F. Ghavidel et al. 536in the exposure monitoring in occupational health.

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Optimization of a matrix solid-phase dispersion method for the analysis of pesticide residues in vegetables

Cited by 71 publications

References 10 publications

A gradual advancement of the extraction and cleanup techniques for residue analysis of pesticides in food matrices and liquid products: a review

A gradual advancement of the extraction and cleanup techniques for residue analysis of pesticides in food matrices and liquid products: a review

MSPD as sample preparation method for determination of selected pesticide residues in apples

Optimization of Solid Phase Microextraction Procedure Followed by Gas Chromatography with Electron Capture Detector for Pesticides Butachlor and Chlorpyrifos

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