Improvement on Analytical Method of Residual Propineb in Red bean (Vigna angularis Willd.) Rich in Protein

Leem, Su-Bin; Lee, Jaewon; Choi, Jinseok; Choi, Jeong Yoon; Ham, Hun-Ju; Hur, Jang-Hyun

doi:10.7585/kjps.2018.23.1.17

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…The MLOQ was calculated by Eq. ( 3 ) taking into consideration the following factors: the instrument limit of detection, volume of extraction solvent, injection volume, dilution factor, and sample amount 39 , 40 . where A: instrument limit of detection, B: volume of extraction solvent, C: injection volume, D: dilution factor, E: sample amount.…”

Section: Methodsmentioning

confidence: 99%

Residual characteristics and safety assessment of the insecticides spiromesifen and chromafenozide in lettuce and perilla

Sardar

Byeon

Choi

et al. 2022

Sci Rep

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This study was performed to investigate the residual characteristics, safety assessment, and pre-harvest interval (PHI) of spiromesifen and chromafenozide in lettuce (Latuca sativa L.) and perilla (Perilla frutescens (L.) Britton) leaves. Samples were harvested periodically, extracted using QuEChERS method, and analyzed by LC-MS/MS. Average recoveries of spiromesifen and its metabolite BSN2060-enol and chromafenozide were ranged from 80.6 to 107.9%, with relative standard deviation < 10%. Spiromesifen and cromafenozide initial residues in lettuce were dissipated to 81.45 and 95.52% after 7 days, with half-lives of 2.89 and 1.69 days respectively. Values in perilla leaves were 76.68 and 61.27% after the same period, with half-lives of 4.25 and 6.30 days, respectively. Risk assessment results showed that %ADI (acceptable daily intake) of spiromesifen and chromafenozide was 6.83 and 0.56, in lettuce and 4.60 and 0.25% in perilla leaves, respectively. Theoretical maximum daily intakes of spiromesifen and chromafenozide were 67.49 and 3.43%, respectively, indicating that residues of both compounds pose no considerable health risks to consumers. This study provides data for setting maximum residue limits and PHIs for the safe use of spiromesifen and chromafenozide in lettuce and perilla.

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Section: Methodsmentioning

confidence: 99%

Residual characteristics and safety assessment of the insecticides spiromesifen and chromafenozide in lettuce and perilla

Sardar

Byeon

Choi

et al. 2022

Sci Rep

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Establishment of Analyzing Method of Fenpropathrin Residue in Angelica dahurica Radix and Osterici Radix

Ham

Leeb²,

Choi

et al. 2023

CTM

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Background: Angelica dahurica Radix and Osterici radix, are perennial herbs belonging to the family Umbelliferae, which were attacked by red spiders, thus fenpropathrin was registered. Fenpropathrin is important in improving productivity and quality of medicinal herbs due to timely pest control. However, residue may likely remain after harvest, and therefore, the residue analysis is important to ensure pesticides safety management. Objective: This study aimed to establish analysis method for fenpropathrin residues in A. dahurica Radix and O. radix using GLC-ECD and GC-MS/MS. Methods: Samples were moisturized with distilled-water and extracted with acetonitrile. The interferences were removed using SPE cartridges and analyzed by GLC-ECD and GC-MS/MS. Results: Based on pre-experiment results, the analysis method was optimized using double-cleanup method (SPE-GCB/NH2 & SPE silica cartridges). Fenpropathrin peak confirmed by GC-MS at the same retention time and with its mass numbers. Nevertheless, the cleanup processes are laborious and require a rather long time. Thus, additional effortless analysis method was developed using the d-SPE method that can apply to highly selective and sensitive GC-MS/MS. The LOD of GC-ECD and GC-MS/MS was 0.1 and 0.01 ng, respectively. While the LOQ was 0.04 mg/kg for both. Linearity (r2) was > 0.998 (GLC-ECD) and 0.999 (GC-MS/MS). The recoveries at three spiking levels ranged 83.6-103.1% and 89.6-98.0% for A. dahurica Radix and O. radix, respectively. Conclusion: Accuracy of the improved method met the standard of the Korean Ministry of Food and Drug Safety. Therefore, the developed methods expected to be used for analyzing pesticide residues in herbal medicines in Korea and other countries.

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A Study on Improvement of the Analytical Method of Chlorantraniliprole Residue in Herbal Medicine (Rehmannia glutinosa Libosch) using HPLC-UVD

Choi¹,

Lee²,

Ham³

et al. 2021

kjps

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Improvement on Analytical Method of Residual Propineb in Red bean (Vigna angularis Willd.) Rich in Protein

Cited by 4 publications

References 15 publications

Residual characteristics and safety assessment of the insecticides spiromesifen and chromafenozide in lettuce and perilla

Residual characteristics and safety assessment of the insecticides spiromesifen and chromafenozide in lettuce and perilla

Establishment of Analyzing Method of Fenpropathrin Residue in Angelica dahurica Radix and Osterici Radix

A Study on Improvement of the Analytical Method of Chlorantraniliprole Residue in Herbal Medicine (Rehmannia glutinosa Libosch) using HPLC-UVD

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