Determination of boscalid, pyraclostrobin and trifloxystrobin in dried grape and apricot by HPLC/UV method

Dost, Kenan; Öksüz, Mertcan; Cittan, Mustafa; Mutlu, Büşra; Tural, Betül

doi:10.1016/j.jfca.2022.104926

Cited by 6 publications

(1 citation statement)

References 22 publications

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“…Recently, HPLC with a diode array detector (DAD) was employed to examine the dissipation and residue dynamics of pyraclostrobin in banana and soil under field conditions [16]. Also, in 2023, Dost et al [17] described a method for the determination of boscalid and pyraclostrobin in dried grape and apricot using an HPLC-UV chromatographic system. For the determination of various pesticide classes, numerous methods have been proposed that involve sample blending with acetone during the extraction stage, followed by repeated separating stages with petroleum ether and dichloromethane.…”

Section: Introductionmentioning

confidence: 99%

Adjuvant Effects on Pyraclostrobin and Boscalid Residues, Systemic Movement, and Dietary Risk in Garlic under Field Conditions

Parlakidis,

Adamidis,

Alexoudis

et al. 2023

Agriculture

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Adjuvants are supplemental substances added to pesticide tank mixtures to enhance their efficacy by altering the dispersing, emulsifying, spreading, sticking, and wetting properties of the spray mixture. The goals of this study were an assessment of the effectiveness of pyraclostrobin and boscalid against garlic rust; the fungicide’s dissipation and translocation within plant tissue in the presence of commercial adjuvants Dash® HC EC; and the validation of an analytical method for concurrently determining boscalid and pyraclostrobin in green garlic and garlic bulbs. Pyraclostrobin and boscalid retention in green garlic and the dietary exposure risks were also evaluated. The adjuvant Dash® HC EC is an emulsifiable concentrate containing fatty acids, methyl esters, and alkoxylated alcohol–phosphate esters. The test plots were sprayed with the maximum recommended dosage of 400.5 g a.i. ha−1 boscalid and 100.5 g a.i. ha−1 pyraclostrobin. The residues of pyraclostrobin and boscalid in garlic bulb and green garlic samples were determined using a mini-Luke multi-residue solvent extraction method paired with a high-performance liquid chromatography diode array detector (HPLC–DAD). This method is based on the extraction of a homogeneous sample with acetone, petroleum ether, and dichloromethane. Boscalid and pyraclostrobin recoveries in green garlic and garlic bulbs ranged from 71% to 107% on average, with a relative standard deviation (RSD) of 6.8% to 18.1%, and limits of quantification were 0.02 mg/kg. In green garlic and garlic bulbs, boscalid residues ranged from 0.14 to 3.51 mg/kg and pyraclostrobin from lower than LOQ to 1.43 mg/kg, during the experiment. The adjuvant increased the fungicidal efficacy of the fungicides and their retention on green garlic. Although boscalid is considered a nonsystemic fungicide, it showed higher translocation from garlic leaves to garlic bulbs than pyraclostrobin. Regarding the dietary risk assessment, the use of the adjuvant in a tank mixture with boscalid and pyraclostrobin is considered safe 14 days after application, which agrees with the recommended PHI.

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Section: Introductionmentioning

confidence: 99%

Adjuvant Effects on Pyraclostrobin and Boscalid Residues, Systemic Movement, and Dietary Risk in Garlic under Field Conditions

Parlakidis,

Adamidis,

Alexoudis

et al. 2023

Agriculture

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A Facile and Safe Route to Fabricate Boscalid‐Loaded ZIF‐8 Nanoparticles With Efficient Antibacterial Activity and Long‐Sustained Release

Chen,

Liu,

Zhan

et al. 2024

Applied Organom Chemis

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Synthesis of ZIF‐8 mainly uses zinc nitrate hexahydrate (Zn(NO3)2.6H2O) as the zinc source. Zn (NO3)2.6H2O is flammable, explosive, and highly corrosive, posing a threat to human health. It also requires a molar ratio of 2‐methylimidazole to zinc source greater than 20, resulting in increased costs. In this work, a pH‐sensitive controlled‐release nano‐capsule of fungicide, ZIF‐8@Boscalid, was established using green zinc sources (zinc sulfate and zinc acetate) and was prepared based on metal–organic framework (ZIF‐8) for higher antifungal effect and low bio‐toxicity. The loading ratio is as high as 34%. In addition, the release of fungicide Boscalid showed pH‐sensitive response due to the weak acidic group in the ZIF structure, in which the rate of release was more rapid under acid condition (< 5). Cumulative release rates of the ZIF‐8(A)@Boscalid system and ZIF‐8(S)@Boscalid system were 76.15% and 86.22%, respectively. Meanwhile, the antifungal effect of ZIF‐8@Boscalid was 1.5 times more of that commercially available product on CI‐8 at the concentration of 300 mg/L, and the antibacterial activity values of the ZIF‐8(A)@Boscalid system and ZIF‐8(S)@Boscalid system against CJ‐8 were 84.54% and 78.65%, respectively. Furthermore, the obtained ZIF‐8@Boscalid system using the method described in this article exhibited certain UV resistance. Thus, this work not only proves that ZIF‐8@Boscalid could be used as nanoparticles platform for smart control over CJ‐8 but also has great potential effective utilization of Boscalid and achieving sustained release.

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Hexafluoroisopropanol-based supramolecular solvent for liquid phase microextraction of pesticides in milk

Wang,

Li,

Addo

et al. 2024

Food Chemistry

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Determination of boscalid, pyraclostrobin and trifloxystrobin in dried grape and apricot by HPLC/UV method

Cited by 6 publications

References 22 publications

Adjuvant Effects on Pyraclostrobin and Boscalid Residues, Systemic Movement, and Dietary Risk in Garlic under Field Conditions

Adjuvant Effects on Pyraclostrobin and Boscalid Residues, Systemic Movement, and Dietary Risk in Garlic under Field Conditions

A Facile and Safe Route to Fabricate Boscalid‐Loaded ZIF‐8 Nanoparticles With Efficient Antibacterial Activity and Long‐Sustained Release

Hexafluoroisopropanol-based supramolecular solvent for liquid phase microextraction of pesticides in milk

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