Determination of dithiocarbamates and metabolites in plants by liquid chromatography–mass spectrometry

Blasco, Cristina; Font, Guillermina; Picó, Yolanda

doi:10.1016/j.chroma.2003.12.002

Cited by 113 publications

(50 citation statements)

References 26 publications

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“…Analytical techniques such as Gas Chromatography (GC) and High Performance Liquid Chromatography (HPLC) are widely used to monitor the presence of these compounds in water, soils, foods, fruits and vegetables. Several recent papers have reported advances in this field [2,[3][4][5][6][7][8] . In the present study, a method employing HPLC with UV detection for the separation, identification and quantification of four widely used pesticides on cauliflower was developed and validated.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Some Pesticide Residues in Cauliflower by High Performance Liquid Chromatography

Islam¹,

Afrin²,

Hossain³

et al. 2009

American J. of Environmental Sciences

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Problem statement: Increased use of chemicals on vegetables started gaining momentum and continued its up-trend in Bangladesh. Wide spread use of pesticides in agriculture concern of residue accumulation, which may remain in food and agricultural environment causing concern of human health and risking ecological balance. Attempt made to ensure that their applications were correct and safe and result in no residues in food beyond codex developed maximum residue limits. Approach: This study reported a method based on High Performance Liquid Chromatography (HPLC) for determination of pesticide residues used in Cauliflower. Cauliflower sprayed with, 4 different pesticides (diazinon, malathion, chlorpyrifos and cypermethrin) at recommended dose and double of recommended dose were analyzed for their residual contents. Samples were collected at same day after application of pesticide. Commercial samples of cauliflowers were collected from different markets of Dhaka city. Reversed-phase HPLC system with UV detection was used for the separation, identification and quantification of all these analytes using acetonitrile-water (70:30, v/v) as mobile phase. Results: Limit of detection of 0.02 mg kg −1 was obtained. Calibration curves that constructed for the analytes spiked into samples followed linear relationships with good correlation coefficients (R 2 >0.990). In the analysis, from vegetables treated with diazinon and chlorpyrifos at recommended and double of recommended doses, residual amounts above respective MRL values were found. Conclusion: Method used permitted the determination of these pesticides in cauliflower at concentration level demanded by current legislation. Attention paid on excess use or abuse of pesticides by judicious application for safety of public health in Bangladesh. Additional data to monitor residues in food and to fill gaps in current knowledge would be helpful in assessing human exposure risks from ingestion of contaminated cauliflower or other vegetables.

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Section: Introductionmentioning

confidence: 99%

Analysis of Some Pesticide Residues in Cauliflower by High Performance Liquid Chromatography

Islam¹,

Afrin²,

Hossain³

et al. 2009

American J. of Environmental Sciences

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“…Silicabased support materials (derivatized silica, silica gel, sand, florisil) are still being used almost exclusively in MSPD. Blasco et al (2004) have demonstrated the use of an activated carbon fiber for the isolation of dithiocarbamates from fruits, vegetables and cereals. d. the best proportion ratio of sample to solid support material.…”

Section: Matrix Solid-phase Dispersion (Mspd)mentioning

confidence: 99%

Sample Preparation in the Analysis of Pesticides Residue in Food by Chromatographic Techniques

Tan¹,

Chai²

2011

Pesticides - Strategies for Pesticides Analysis

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“…Several recent studies have reported an advance in this field. (Melo et al, 2004;Blasco et al, 2004;Oelero et al, 2003). The reported a method based on High performance liquid chromatography for determination of pesticide residues used in cauliflower (Siddiqui et al, 2009).…”

Section: Fig 1: Fenvaleratementioning

confidence: 99%

Validated High Performance Liquid Chromatographic Method for Analysis of Fenvalerate Pesticide in Chilies by QuEChERS Extraction Cleanup and High Liquid Chromatography

Ambarak¹

2010

American Journal of Applied Sciences

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Problem statement: Contamination associated with pesticide use has increased as well, adversely impacting the environment and causing human health risks through residues on food. Approach: This study reports the extraction of Fenvalerate (FE) in chilies using QuEChERS based on High Performance Liquid Chromatography (HPLC) describes a simple, fast and inexpensive method. The chillie was extracted with acetonitrile Aliquots were cleaned-up using Solid Phase Extraction (dSPE), a primary-secondary amine carbon black. Reversed-phased HPLC system with PDA detection was used for the separation identification and quantification of all these analyses using acetonitrile methanol-potassium dehydrogenate phosphate (50:40:10) as mobile phase. Results: Limit of detection of 0.01 µg mL was obtained. Calibration curves that constructed for the analyzes spiked into samples followed linear relationships with good correlation coefficients (R 2 >0.9944). In this method was found to be precise, specific and accurate for detection and analysis of Fenvalerate in chilies. Conclusion: QuEChERS methods are convenient, rugged methods that simplify extract cleanup, reduce material costs and improve sample throughout. Here we demonstrate the effectiveness of QuEChERS sample cleanup using a multiresidue analysis of pesticide on chilies.

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Determination of dithiocarbamates and metabolites in plants by liquid chromatography–mass spectrometry

Cited by 113 publications

References 26 publications

Analysis of Some Pesticide Residues in Cauliflower by High Performance Liquid Chromatography

Analysis of Some Pesticide Residues in Cauliflower by High Performance Liquid Chromatography

Sample Preparation in the Analysis of Pesticides Residue in Food by Chromatographic Techniques

Validated High Performance Liquid Chromatographic Method for Analysis of Fenvalerate Pesticide in Chilies by QuEChERS Extraction Cleanup and High Liquid Chromatography

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