Dissipation pattern and risk quotients assessment of amisulbrom in Korean melon cultivated in plastic house conditions

Kabir, Humayun; El‐Aty, A. M. Abd; Rahman, Md. Musfiqur; Chung, Ho Seok; Lee, Han Sol; Park, Sun-Hyang; Hacımüftüoğlu, Fazil; Chang, Byung-Joon; Shin, Ho‐Chul

doi:10.1007/s10661-017-6017-0

Cited by 11 publications

(3 citation statements)

References 21 publications

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“…In Republic of Korea, the MRL for azoxystrobin in Swiss chard has been set to 50 mg/kg (MFDS, ). On average, 0.0003 kg/day Swiss chard is consumed by the average Korean adult (considering 55 kg average weight; Chang et al, ; Kabir et al, ). The ADI of azoxystrobin is 0.2 mg/kg body weight/day set by the Korean authority (MFDS, ).…”

Section: Resultsmentioning

confidence: 99%

Dynamic residual pattern of azoxystrobin in Swiss chard with contribution to safety evaluation

Farha

El‐Aty

Rahman

et al. 2017

Biomedical Chromatography

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This study aimed at quantifying the residual amount of azoxystrobin in Swiss chard samples grown under greenhouse conditions at two different locations (Gwangju and Naju, Republic of Korea). Samples were extracted with acetonitrile, separated by salting out, and subjected to purification by using solid-phase extraction. The analyte was identified using liquid chromatography-ultraviolet detection. The linearity of the calibration range was excellent with coefficient of determination 1.00. Recovery at three different spiking levels (0.1, 0.5, and 4 mg/kg) ranged between 82.89 and 109.46% with relative standard deviation <3. The limit of quantification, 0.01 mg/kg, was considerably much lower than the maximum residue limit (50 mg/kg) set by the Korean Ministry of Food and Drug Safety. The developed methodology was successfully used for field-treated leaves, which were collected randomly at 0-14 days following azoxystrobin application. The rate of disappearance in/on Swiss chard was ascribed to first-order kinetics with a half-life of 8 and 5 days, in leaves grown in Gwangju and Naju greenhouses, respectively. Risk assessments revealed that the acceptable daily intake percentage is substantially below the risk level of consumption at day 0 (in both areas), thus encouraging its safe consumption.

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Section: Resultsmentioning

confidence: 99%

Dynamic residual pattern of azoxystrobin in Swiss chard with contribution to safety evaluation

Farha

El‐Aty

Rahman

et al. 2017

Biomedical Chromatography

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“…Moreover, studying the dissipation behavior and the biological half-life of pesticide residues during cultivation is essential to predicting the PHRLs. A number of published papers have studied the PHRL in various crops and pesticides [5,6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Dissipation Kinetics and the Pre-Harvest Residue Limits of Acetamiprid and Chlorantraniliprole in Kimchi Cabbage Using Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry

Lee

Kim

et al. 2019

Molecules

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The dissipation behaviors of acetamiprid and chlorantraniliprole in kimchi cabbages were studied under open-field conditions. A simple and rapid analytical method was developed using ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS). The multiple reaction monitoring (MRM) conditions of two pesticides were optimized to quantify and identify the pesticide residues. Sample preparation was performed by the QuEChERS (quick, easy, cheap, effective, rugged, and safe) method. Average recovery rates at the different spiked levels (0.05 and 0.25 mg/kg) were in the range of 103.6–113.9% (acetamiprid) and 80.8–91.2% (chlorantraniliprole), and the relative standard deviations were ≤4.3% for all. The dissipation kinetics were assessed using first-order equations after spraying acetamiprid and chlorantraniliprole individually on kimchi cabbages. The biological half-lives in field 1 and 2 were 5.2 and 6.3 days (acetamiprid) and 10.0 and 15.2 days (chlorantraniliprole), respectively. Based on the dissipation equations, the pre-harvest residue limits (PHRLs) corresponding to each day before harvest were suggested as the guidelines to meet the MRL on harvest day. It was also predicted that the terminal residues observed after multiple sprayings (three and seven days) would be below the MRL when harvested, in compliance with the established pre-harvest intervals.

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“…The risk is considered unacceptable when ADI is >100% (Szpyrka et al, ; Kabir, Abd El‐Aty, Rahman, Chung, et al, ).…”

Section: Methodsmentioning

confidence: 99%

Residual dynamic and risk assessment of dimethomorph in Swiss chard grown at two different sites

Kabir

El‐Aty

Rahman

et al. 2017

Biomedical Chromatography

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Residue analysis of dimethomorph in Swiss chard cultivated at two different locations under greenhouse conditions was conducted using high-performance liquid chromatography-ultraviolet detection and confirmed by tandem mass spectrometry. The randomly collected samples (over 14 days) were extracted with acetonitrile and purified using a Florisil solid-phase extraction cartridge. Linearity over a concentration range of 0.05-50.0 mg/L had an excellent coefficient of determination of 0.9996. Recovery rate ranged from 82.98 to 95.43% with relative standard deviations ≤5.12% and limits of detection and quantification of 0.003 and 0.01 mg/kg, respectively. The initial deposits [day 0 (2 h post-application)] were considerably lower (7.57 and 8.55 mg/kg for sites 1 and 2, respectively) than the maximum residue limit (30 mg/kg) set by the Korean Ministry of Food and Drug Safety. The dissipation half-life was approximately the same, being 5.0 and 5.1 days for sites 1 and 2, respectively. Risk assessment estimated as acceptable daily intake revealed a value of 0.084 or 0.094% (day 0) and 0.014% (10 days post-application), for sites 1 and 2, respectively. The values indicated that dimethomorph can be safely used on Swiss chard, with no hazardous effects expected for Korean consumers.

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Dissipation pattern and risk quotients assessment of amisulbrom in Korean melon cultivated in plastic house conditions

Cited by 11 publications

References 21 publications

Dynamic residual pattern of azoxystrobin in Swiss chard with contribution to safety evaluation

Dynamic residual pattern of azoxystrobin in Swiss chard with contribution to safety evaluation

Dissipation Kinetics and the Pre-Harvest Residue Limits of Acetamiprid and Chlorantraniliprole in Kimchi Cabbage Using Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry

Residual dynamic and risk assessment of dimethomorph in Swiss chard grown at two different sites

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