Application of Solvent Sublation for the Determination of Organophosphorous Pesticides in Vegetables by Gas Chromatography with a Flame Photometric Detector

Xi, Yang; Dong, Hao

doi:10.2116/analsci.23.295

Cited by 15 publications

(6 citation statements)

References 13 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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“…Different sample-injection times (10,20,30 and 40 s) were tested in this experiment, and results showed that the signal of ICP-MS becomes higher with the increase in injection time. However, longer injection time degraded electrophoretic resolution.…”

Section: The Optimum Conditions Of Ce Separation For Dimethoate Tricmentioning

confidence: 99%

“…Up to date, most methods of analyzing the OPPs residues in environmental samples and plants are based on the use of chromatographic techniques, such as GC [7][8][9][10], LC [11][12][13][14], etc. However, the analysis by GC requires an additional step of derivatization and the analysis by LC consumes much organic solvents, especially common chromatographic technique offers relatively lower separation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Determination of organophosphorus pesticides by capillary electrophoresis‐inductively coupled plasma mass spectrometry with collective sample‐introduction technique

Gao

Shen

et al. 2009

Electrophoresis

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A new method for the determination of organophosphorus pesticides using CE-ICP-MS with collective sample-introduction technique has been developed in this study. The method has been successfully used to separate and determine dimethoate, trichlorfon and glyphosate with an RSD of < 5% for migration times (n = 6) and < 4% for peak areas (n = 6). The experimental results showed that the collective sample-introduction considerably reduced the makeup volume and the dilution of analyte, and eventually resulted in a much lower detection limit and a much better electrophoretic resolution. The peak widths and the detection limits of dimethoate, trichlorfon and glyphosate obtained with this method are 15-17 s and 0.05-0.07 microg/mL (as compound), respectively. Using this method, we have successfully separated and determined dimethoate, trichlorfon and glyphosate in vegetable sample with a recovery of 90-96%.

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“…This technique has many advantages, such as high separation efficiency, high concentration coefficient, low dosage of organic solvent, soft separation process, and simple operation. With the advantages of simultaneous separation and enrichment, SS has been a good pretreatment technique of trace target compounds for environmental analysis − and food analysis. , …”

Section: Introductionmentioning

confidence: 99%

Simultaneous Analysis of Trace Polymer Additives in Plastic Beverage Packaging by Solvent Sublation Followed by High-Performance Liquid Chromatography

Lin

Liu

et al. 2013

J. Agric. Food Chem.

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Using solvent sublation (SS), a novel pretreatment method for separating and concentrating antioxidants and ultraviolet absorbers from plastic beverage packaging was developed, and these target compounds were quantitatively analyzed by high-performance liquid chromatography (HPLC). In the pretreatment section, the effects of the sublation solvent, solution pH, NaCl concentration, nitrogen flow rate, sublation time, and light condition on the sublation efficiency were investigated in detail and the optimal conditions of the solvent sublation process were selected. The analytical method of SS-HPLC showed good linearity in the range from 0.33 to 667 ng/mL with good presenting regression coefficients (0.9995 ≥ R(2) ≥ 0.9972). Low limits of detection (LODs) of 0.34-1.25 ng/mL and limits of quantification (LOQs) of 1.13-4.15 ng/mL were achieved. The mean recoveries were in the range from 88.73 to 107.65% at 20, 30, and 40 ng/mL spiked levels, and the relative standard deviations (RSDs) were in the range from 2.16 to 10.55%.

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Application of Solvent Sublation for the Determination of Organophosphorous Pesticides in Vegetables by Gas Chromatography with a Flame Photometric Detector

Cited by 15 publications

References 13 publications

Determination of Insecticide Residues in Vegetal Fruits

Determination of Insecticide Residues in Vegetal Fruits

Determination of organophosphorus pesticides by capillary electrophoresis‐inductively coupled plasma mass spectrometry with collective sample‐introduction technique

Simultaneous Analysis of Trace Polymer Additives in Plastic Beverage Packaging by Solvent Sublation Followed by High-Performance Liquid Chromatography

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