Rapid analysis of multi-pesticides in Morinda officinalis by GC–ECD with accelerated solvent extraction assisted matrix solid phase dispersion and positive confirmation by GC–MS

Liu, Hongmei; Kong, Weijun; Gong, Bao; Miao, Qing; Qi, Yun; Yang, Meihua

doi:10.1016/j.jchromb.2014.10.017

Cited by 22 publications

(11 citation statements)

References 33 publications

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“…[41][42][43][44][45][46] In this technique, small quantities of the solid samples, as fruits, are dispersed on a sorbent in a mortar and placed on cartridges for the pesticides extraction with small amount of organic solvents. [41][42][43][44][45][46] Depending on the nature of the sorbent selected, the extraction and clean-up steps occur simultaneously, allowing the direct analysis of the collected extracts. [41][42][43][44][45][46] This work proposes a simple and efficient analytical method based on the separation and quantitation of five relevant pesticides (chlorothalonil, dimethoate, diazinon, fenitrothion and parathion methyl) used in tropical fruit crops such as banana, mango, melon, papaya and pineapple.…”

Section: 3mentioning

confidence: 99%

“…[37][38][39][40][41][42][43][44][45][46] MSPD is a simple and robust alternative to sample preparation. [41][42][43][44][45][46] In this technique, small quantities of the solid samples, as fruits, are dispersed on a sorbent in a mortar and placed on cartridges for the pesticides extraction with small amount of organic solvents. [41][42][43][44][45][46] Depending on the nature of the sorbent selected, the extraction and clean-up Determination of Target Pesticide Residues in Tropical Fruits Employing MSPD Extraction J. Braz.…”

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confidence: 99%

“…35,36 With the miniaturization trends in sample preparation, several new methods have been proposed, such as solid-phase microextraction (SPME), 37,38 stir bar sorptive extraction (SBSE), 39,40 matrix solid phase dispersion (MSPD), [41][42][43][44][45][46] among others, that offer advantages in the sample preparation procedure as minimization in the use of hazardous solvents, generate little waste and reduce time, space and glassware required for extraction. [37][38][39][40][41][42][43][44][45][46] MSPD is a simple and robust alternative to sample preparation. [41][42][43][44][45][46] In this technique, small quantities of the solid samples, as fruits, are dispersed on a sorbent in a mortar and placed on cartridges for the pesticides extraction with small amount of organic solvents.…”

mentioning

confidence: 99%

“…1142 steps occur simultaneously, allowing the direct analysis of the collected extracts. [41][42][43][44][45][46] This work proposes a simple and efficient analytical method based on the separation and quantitation of five relevant pesticides (chlorothalonil, dimethoate, diazinon, fenitrothion and parathion methyl) used in tropical fruit crops such as banana, mango, melon, papaya and pineapple. For this purpose, matrix solid phase dispersion (MSPD) was used for the extraction and clean-up steps, followed by gas chromatography with electron capture detection (GC-ECD).…”

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confidence: 99%

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Determination of Target Pesticide Residues in Tropical Fruits Employing Matrix Solid-Phase Dispersion (MSPD) Extraction Followed by High Resolution Gas Chromatography

Freitas

Serafim

Lanças

2018

J. Braz. Chem. Soc.

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A simple method based on matrix solid-phase dispersion (MSPD) extraction and gas chromatography with electron-capture detection (GC-ECD) is employed to determine pesticide residues in the following tropical fruits: banana, mango, melon, papaya and pineapple. In the MSPD proposed method, C18, silica gel and ethyl acetate presented the best results in the extraction, clean-up and elution steps, respectively. Spiked blank samples were used to minimize the matrix effect in the chromatographic determination. The validation process was conducted at three different concentration levels of spiked samples (0.50-2.50 µg g -1 ) in within-a-day and in among days assays. The limits of detection for the pesticides ranged from 4.0 to 23 µg kg -1 . The method showed acceptable selectivity, coefficients of correlation higher than 0.997, and recovery between 76-105%. The within-a-day precision was assessed through the relative standard deviation (2.8-19%) for the different levels of spiked samples tested.Keywords: matrix solid-phase dispersion, pesticide residues, method validation, GC-ECD IntroductionThe recent Brazilian fruit growing jumped the country to an important position in the international agribusiness sector. In 2015, Brazil set a record in fruit exports with a total fresh fruit sales achieving US$ 735 million, a performance around US$ 100 million higher than 2014. With a variety of crops produced throughout the country and in different climates, Brazil is the leading world producer of oranges; the secondleading producer of bananas and papayas; the third-largest producer of pineapples; and an important producer of Tahiti lemons, tangerines and grapes. 1 Brazil is, after China and India, the third largest producer of fruit in the world (43 million ton per year). About 70% of Brazil's fruit exports go to Europe and the overarching goal of Brazilian fruit cultivation is to consolidate its position as the leader in the international market. Approximately 711,000 tons of the Brazilian fruits are exported to more than 110 countries being mangoes, melons, oranges, grapes, papayas, limes and bananas the main fruits exported in 2014. According to the Brazilian association of producers and exporters of fruit, the country has conditions to reach US$ 1 billion in exports of fresh fruit by 2017 if it can conform to international phytosanitary and customs conditions through better control of domestic production. 1The international market has strongly signaled that there is a movement of consumers looking for healthy food and without agrochemical residues considered to be harmful to human health. The European Community, mainly, have required that the exporters take into account the respect with the environment, traceability and working conditions, health of workers involved in food production and level of pesticide residues.The European Union and the United Kingdom banned mangoes imported from India until the country meets the phytosanitary standards that will ensure they are pest-free. 2,3The entrance of cherries from countri...

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Section: 3mentioning

confidence: 99%

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confidence: 99%

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Determination of Target Pesticide Residues in Tropical Fruits Employing Matrix Solid-Phase Dispersion (MSPD) Extraction Followed by High Resolution Gas Chromatography

Freitas

Serafim

Lanças

2018

J. Braz. Chem. Soc.

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“…Existing methods include liquid-phase microextraction (LPME) [4], dispersive liquid-liquid microextraction (DLLME) [5], matrix solid-phase dispersion (MSPD) [6], solid-phase microextraction (SPME) [7,8], single-drop microextraction (SDME) [9], micro solid-phase extraction (μ-SPE) [10], solid-phase extraction (SPE) [11] and magnetic solid-phase extraction (MSPE) [1].…”

Section: Introductionmentioning

confidence: 99%

Magnetite nanoparticles surface-modified with a zinc(II)-carboxylate Schiff base ligand as a sorbent for solid-phase extraction of organochlorine pesticides from seawater

2016

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Magnetite nanoparticles were surface-modified with mercaptoacetic acid (MAA), complexed with Zn(II), and then treated with the dual Schiff base (referred to as imine-based ligand; IBL; obtained by reaction of paminobenzoic acid and 2,3-butanedione) to give particles with an architecture of type Fe 3 O 4 @MAA@IBL. These are shown to be viable sorbents for magnetic solid phase extraction of organochlorine pesticides (OCPs) from seawater samples. Efficient extraction of the OCPs probably is due to lone pair-π, π-complexation and π-interactions. The sorbent was characterized by transmission electron microscopy, scanning electron microscopy, FT-IR and energy-dispersive X-ray spectroscopy. The effects of the volumes of sample, sorbent dosage and eluent, adsorption and desorption times, and the salinity of the sample on the extraction efficiencies were optimized. The OCPs (heptachlor, aldrin, dieldrin, p,p'-DDE and p,p'-DDT) were quantified by gas chromatography with microelectron capture detection. Under optimal conditions, the limit of detections range was between 1.0 and 1.9 ng L −1 . The enrichment factors are between 84.1 and 99.9 %. The sorbent was applied to the rapid extraction of trace quantities of OCPs from seawater samples and gave good relative recoveries (78 to 108 %) and relative standard deviations (<8.3 %).

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Simultaneous determination of 106 pesticides in nuts by LC–MS/MS using freeze‐out combined with dispersive solid‐phase extraction purification

Wang

Gong

Zhang

et al. 2017

J of Separation Science

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As a result of the low water content and high fat matrices in nuts, it is very difficult to simultaneously determine multi-pesticides in trace levels. Here, a sample pretreatment method was developed in which, microwave-assisted solvent extraction was firstly used to extract pesticides, and then a two-step cleanup method was conducted combining freeze-out with dispersive solid-phase extraction to remove the lipidic matrix. By this way, 106 pesticides were simultaneously determined in the complicated nut sample by using an ultra-high pressure liquid chromatography coupled with a tandem mass spectrometer. Average recoveries were 75.3-119.3% with relative standard deviations < 14% at three concentration levels. The limits of detection and quantification were in the ranges of 0.3-3.0 and 1.0-10.0 μg/kg, respectively. Furthermore, the method was successfully applied to the determination of pesticides in 180 commercial nut samples.

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Rapid analysis of multi-pesticides in Morinda officinalis by GC–ECD with accelerated solvent extraction assisted matrix solid phase dispersion and positive confirmation by GC–MS

Cited by 22 publications

References 33 publications

Determination of Target Pesticide Residues in Tropical Fruits Employing Matrix Solid-Phase Dispersion (MSPD) Extraction Followed by High Resolution Gas Chromatography

Determination of Target Pesticide Residues in Tropical Fruits Employing Matrix Solid-Phase Dispersion (MSPD) Extraction Followed by High Resolution Gas Chromatography

Magnetite nanoparticles surface-modified with a zinc(II)-carboxylate Schiff base ligand as a sorbent for solid-phase extraction of organochlorine pesticides from seawater

Simultaneous determination of 106 pesticides in nuts by LC–MS/MS using freeze‐out combined with dispersive solid‐phase extraction purification

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